Finding the Fourth Proportional to 1,360.76, 1,877.10 and 862.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.76 : 1,877.10 = 862.52 : x
2. Step 2: Convert to fraction form
   1,360.76/1,877.10 = 862.52/x
3. Step 3: Cross multiply
   1,360.76x = 1,877.10 × 862.52
4. Step 4: Simplify right side
   1,360.76x = 1,619,036.29
5. Step 5: Solve for x
   x = 1,619,036.29/1,360.76
6. Step 6: Final answer
   x = 1,189.80