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Finding the Fourth Proportional to 1,978,624.40, 2,964,437.40 and 1,677,693.20

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Solution

The fourth proportional to 1,978,624.40, 2,964,437.40 and 1,677,693.20 is: 2,513,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,624.40 : 2,964,437.40 = 1,677,693.20 : x
  2. Step 2: Convert to fraction form
    1,978,624.40/2,964,437.40 = 1,677,693.20/x
  3. Step 3: Cross multiply
    1,978,624.40x = 2,964,437.40 × 1,677,693.20
  4. Step 4: Simplify right side
    1,978,624.40x = 4,973,416,467,805.68
  5. Step 5: Solve for x
    x = 4,973,416,467,805.68/1,978,624.40
  6. Step 6: Final answer
    x = 2,513,572.80

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