Finding the Fourth Proportional to 1,247.76, 1,872.52 and 598.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247.76 : 1,872.52 = 598.56 : x
2. Step 2: Convert to fraction form
   1,247.76/1,872.52 = 598.56/x
3. Step 3: Cross multiply
   1,247.76x = 1,872.52 × 598.56
4. Step 4: Simplify right side
   1,247.76x = 1,120,815.57
5. Step 5: Solve for x
   x = 1,120,815.57/1,247.76
6. Step 6: Final answer
   x = 898.26