Finding the Fourth Proportional to 2,098.85, 3,151.51 and 1,397.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.85 : 3,151.51 = 1,397.12 : x
2. Step 2: Convert to fraction form
   2,098.85/3,151.51 = 1,397.12/x
3. Step 3: Cross multiply
   2,098.85x = 3,151.51 × 1,397.12
4. Step 4: Simplify right side
   2,098.85x = 4,403,018.40
5. Step 5: Solve for x
   x = 4,403,018.40/2,098.85
6. Step 6: Final answer
   x = 2,097.83