Finding the Fourth Proportional to 2,632.47, 3,947.38 and 876.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.47 : 3,947.38 = 876.85 : x
2. Step 2: Convert to fraction form
   2,632.47/3,947.38 = 876.85/x
3. Step 3: Cross multiply
   2,632.47x = 3,947.38 × 876.85
4. Step 4: Simplify right side
   2,632.47x = 3,461,260.15
5. Step 5: Solve for x
   x = 3,461,260.15/2,632.47
6. Step 6: Final answer
   x = 1,314.83