Finding the Fourth Proportional to 1,613.88, 2,431.98 and 1,541.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.88 : 2,431.98 = 1,541.16 : x
2. Step 2: Convert to fraction form
   1,613.88/2,431.98 = 1,541.16/x
3. Step 3: Cross multiply
   1,613.88x = 2,431.98 × 1,541.16
4. Step 4: Simplify right side
   1,613.88x = 3,748,070.30
5. Step 5: Solve for x
   x = 3,748,070.30/1,613.88
6. Step 6: Final answer
   x = 2,322.40