Finding the Fourth Proportional to 2,098.72, 3,148.01 and 538.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.72 : 3,148.01 = 538.69 : x
2. Step 2: Convert to fraction form
   2,098.72/3,148.01 = 538.69/x
3. Step 3: Cross multiply
   2,098.72x = 3,148.01 × 538.69
4. Step 4: Simplify right side
   2,098.72x = 1,695,785.77
5. Step 5: Solve for x
   x = 1,695,785.77/2,098.72
6. Step 6: Final answer
   x = 808.01