Finding the Fourth Proportional to 1,147,937.72, 1,586,338.83 and 860,959.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147,937.72 : 1,586,338.83 = 860,959.58 : x
2. Step 2: Convert to fraction form
   1,147,937.72/1,586,338.83 = 860,959.58/x
3. Step 3: Cross multiply
   1,147,937.72x = 1,586,338.83 × 860,959.58
4. Step 4: Simplify right side
   1,147,937.72x = 1,365,773,604,882.80
5. Step 5: Solve for x
   x = 1,365,773,604,882.80/1,147,937.72
6. Step 6: Final answer
   x = 1,189,762.81