Finding the Fourth Proportional to 1,400,008.55, 1,931,911.61 and 788,129.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400,008.55 : 1,931,911.61 = 788,129.69 : x
2. Step 2: Convert to fraction form
   1,400,008.55/1,931,911.61 = 788,129.69/x
3. Step 3: Cross multiply
   1,400,008.55x = 1,931,911.61 × 788,129.69
4. Step 4: Simplify right side
   1,400,008.55x = 1,522,596,884,696.49
5. Step 5: Solve for x
   x = 1,522,596,884,696.49/1,400,008.55
6. Step 6: Final answer
   x = 1,087,562.57