Finding the Fourth Proportional to 1,428,430.71, 1,971,264.50 and 783,845.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,430.71 : 1,971,264.50 = 783,845.27 : x
2. Step 2: Convert to fraction form
   1,428,430.71/1,971,264.50 = 783,845.27/x
3. Step 3: Cross multiply
   1,428,430.71x = 1,971,264.50 × 783,845.27
4. Step 4: Simplify right side
   1,428,430.71x = 1,545,166,340,468.37
5. Step 5: Solve for x
   x = 1,545,166,340,468.37/1,428,430.71
6. Step 6: Final answer
   x = 1,081,722.99