Finding the Fourth Proportional to 2,613.71, 3,606.95 and 1,434.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.71 : 3,606.95 = 1,434.80 : x
2. Step 2: Convert to fraction form
   2,613.71/3,606.95 = 1,434.80/x
3. Step 3: Cross multiply
   2,613.71x = 3,606.95 × 1,434.80
4. Step 4: Simplify right side
   2,613.71x = 5,175,251.86
5. Step 5: Solve for x
   x = 5,175,251.86/2,613.71
6. Step 6: Final answer
   x = 1,980.04