Finding the Fourth Proportional to 1,140,982.88, 1,708,951.58 and 780,298.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,982.88 : 1,708,951.58 = 780,298.94 : x
2. Step 2: Convert to fraction form
   1,140,982.88/1,708,951.58 = 780,298.94/x
3. Step 3: Cross multiply
   1,140,982.88x = 1,708,951.58 × 780,298.94
4. Step 4: Simplify right side
   1,140,982.88x = 1,333,493,106,385.33
5. Step 5: Solve for x
   x = 1,333,493,106,385.33/1,140,982.88
6. Step 6: Final answer
   x = 1,168,723.15