Finding the Fourth Proportional to 1,428,377.94, 1,971,156.15 and 783,808.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,377.94 : 1,971,156.15 = 783,808.92 : x
2. Step 2: Convert to fraction form
   1,428,377.94/1,971,156.15 = 783,808.92/x
3. Step 3: Cross multiply
   1,428,377.94x = 1,971,156.15 × 783,808.92
4. Step 4: Simplify right side
   1,428,377.94x = 1,545,009,773,082.86
5. Step 5: Solve for x
   x = 1,545,009,773,082.86/1,428,377.94
6. Step 6: Final answer
   x = 1,081,653.34