Finding the Fourth Proportional to 1,613.16, 2,402.37 and 1,558.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.16 : 2,402.37 = 1,558.48 : x
2. Step 2: Convert to fraction form
   1,613.16/2,402.37 = 1,558.48/x
3. Step 3: Cross multiply
   1,613.16x = 2,402.37 × 1,558.48
4. Step 4: Simplify right side
   1,613.16x = 3,744,045.60
5. Step 5: Solve for x
   x = 3,744,045.60/1,613.16
6. Step 6: Final answer
   x = 2,320.94