Finding the Fourth Proportional to 2,158.42, 3,240.64 and 1,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.42 : 3,240.64 = 1,498.72 : x
2. Step 2: Convert to fraction form
   2,158.42/3,240.64 = 1,498.72/x
3. Step 3: Cross multiply
   2,158.42x = 3,240.64 × 1,498.72
4. Step 4: Simplify right side
   2,158.42x = 4,856,811.98
5. Step 5: Solve for x
   x = 4,856,811.98/2,158.42
6. Step 6: Final answer
   x = 2,250.17