Finding the Fourth Proportional to 2,613.86, 3,607.06 and 1,434.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.86 : 3,607.06 = 1,434.92 : x
2. Step 2: Convert to fraction form
   2,613.86/3,607.06 = 1,434.92/x
3. Step 3: Cross multiply
   2,613.86x = 3,607.06 × 1,434.92
4. Step 4: Simplify right side
   2,613.86x = 5,175,842.54
5. Step 5: Solve for x
   x = 5,175,842.54/2,613.86
6. Step 6: Final answer
   x = 1,980.15