Finding the Fourth Proportional to 1,343.52, 1,854.36 and 877.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.52 : 1,854.36 = 877.50 : x
2. Step 2: Convert to fraction form
   1,343.52/1,854.36 = 877.50/x
3. Step 3: Cross multiply
   1,343.52x = 1,854.36 × 877.50
4. Step 4: Simplify right side
   1,343.52x = 1,627,200.90
5. Step 5: Solve for x
   x = 1,627,200.90/1,343.52
6. Step 6: Final answer
   x = 1,211.15