Finding the Fourth Proportional to 1,323,561.42, 1,980,332.10 and 784,107.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323,561.42 : 1,980,332.10 = 784,107.30 : x
2. Step 2: Convert to fraction form
   1,323,561.42/1,980,332.10 = 784,107.30/x
3. Step 3: Cross multiply
   1,323,561.42x = 1,980,332.10 × 784,107.30
4. Step 4: Simplify right side
   1,323,561.42x = 1,552,792,856,034.33
5. Step 5: Solve for x
   x = 1,552,792,856,034.33/1,323,561.42
6. Step 6: Final answer
   x = 1,173,192.90