Finding the Fourth Proportional to 2,613.77, 3,607.01 and 1,434.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.77 : 3,607.01 = 1,434.90 : x
2. Step 2: Convert to fraction form
   2,613.77/3,607.01 = 1,434.90/x
3. Step 3: Cross multiply
   2,613.77x = 3,607.01 × 1,434.90
4. Step 4: Simplify right side
   2,613.77x = 5,175,691.47
5. Step 5: Solve for x
   x = 5,175,691.47/2,613.77
6. Step 6: Final answer
   x = 1,980.17