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Finding the Fourth Proportional to 1,978,770.40, 2,964,656.40 and 1,677,839.20

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Solution

The fourth proportional to 1,978,770.40, 2,964,656.40 and 1,677,839.20 is: 2,513,791.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,770.40 : 2,964,656.40 = 1,677,839.20 : x
  2. Step 2: Convert to fraction form
    1,978,770.40/2,964,656.40 = 1,677,839.20/x
  3. Step 3: Cross multiply
    1,978,770.40x = 2,964,656.40 × 1,677,839.20
  4. Step 4: Simplify right side
    1,978,770.40x = 4,974,216,722,450.88
  5. Step 5: Solve for x
    x = 4,974,216,722,450.88/1,978,770.40
  6. Step 6: Final answer
    x = 2,513,791.76

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