Finding the Fourth Proportional to 807,788.10, 1,128,691.50 and 807,788.10

Step by Step Solution

1. Step 1: Write the proportion equation
   807,788.10 : 1,128,691.50 = 807,788.10 : x
2. Step 2: Convert to fraction form
   807,788.10/1,128,691.50 = 807,788.10/x
3. Step 3: Cross multiply
   807,788.10x = 1,128,691.50 × 807,788.10
4. Step 4: Simplify right side
   807,788.10x = 911,743,562,271.15
5. Step 5: Solve for x
   x = 911,743,562,271.15/807,788.10
6. Step 6: Final answer
   x = 1,128,691.50