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Finding the Fourth Proportional to 1,978,470, 2,965,710.96 and 779,928.48

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Solution

The fourth proportional to 1,978,470, 2,965,710.96 and 779,928.48 is: 1,169,106.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,470 : 2,965,710.96 = 779,928.48 : x
  2. Step 2: Convert to fraction form
    1,978,470/2,965,710.96 = 779,928.48/x
  3. Step 3: Cross multiply
    1,978,470x = 2,965,710.96 × 779,928.48
  4. Step 4: Simplify right side
    1,978,470x = 2,313,042,441,152.14
  5. Step 5: Solve for x
    x = 2,313,042,441,152.14/1,978,470
  6. Step 6: Final answer
    x = 1,169,106.65

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