Finding the Fourth Proportional to 780,131.10, 1,093,658.10 and 780,131.10

Step by Step Solution

1. Step 1: Write the proportion equation
   780,131.10 : 1,093,658.10 = 780,131.10 : x
2. Step 2: Convert to fraction form
   780,131.10/1,093,658.10 = 780,131.10/x
3. Step 3: Cross multiply
   780,131.10x = 1,093,658.10 × 780,131.10
4. Step 4: Simplify right side
   780,131.10x = 853,196,696,576.91
5. Step 5: Solve for x
   x = 853,196,696,576.91/780,131.10
6. Step 6: Final answer
   x = 1,093,658.10