Finding the Fourth Proportional to 1,456,816.80, 2,185,855.65 and 782,111.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456,816.80 : 2,185,855.65 = 782,111.10 : x
2. Step 2: Convert to fraction form
   1,456,816.80/2,185,855.65 = 782,111.10/x
3. Step 3: Cross multiply
   1,456,816.80x = 2,185,855.65 × 782,111.10
4. Step 4: Simplify right side
   1,456,816.80x = 1,709,581,966,862.72
5. Step 5: Solve for x
   x = 1,709,581,966,862.72/1,456,816.80
6. Step 6: Final answer
   x = 1,173,505.12