Finding the Fourth Proportional to 3,342.61, 5,014.24 and 877.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,342.61 : 5,014.24 = 877.45 : x
2. Step 2: Convert to fraction form
   3,342.61/5,014.24 = 877.45/x
3. Step 3: Cross multiply
   3,342.61x = 5,014.24 × 877.45
4. Step 4: Simplify right side
   3,342.61x = 4,399,744.89
5. Step 5: Solve for x
   x = 4,399,744.89/3,342.61
6. Step 6: Final answer
   x = 1,316.26