Finding the Fourth Proportional to 2,613.75, 3,606.98 and 1,434.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.75 : 3,606.98 = 1,434.90 : x
2. Step 2: Convert to fraction form
   2,613.75/3,606.98 = 1,434.90/x
3. Step 3: Cross multiply
   2,613.75x = 3,606.98 × 1,434.90
4. Step 4: Simplify right side
   2,613.75x = 5,175,648.43
5. Step 5: Solve for x
   x = 5,175,648.43/2,613.75
6. Step 6: Final answer
   x = 1,980.16