Finding the Fourth Proportional to 3,342.56, 5,013.72 and 877.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,342.56 : 5,013.72 = 877.37 : x
2. Step 2: Convert to fraction form
   3,342.56/5,013.72 = 877.37/x
3. Step 3: Cross multiply
   3,342.56x = 5,013.72 × 877.37
4. Step 4: Simplify right side
   3,342.56x = 4,398,862.45
5. Step 5: Solve for x
   x = 4,398,862.45/3,342.56
6. Step 6: Final answer
   x = 1,316.02