Finding the Fourth Proportional to 2,613.80, 3,607.08 and 1,434.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.80 : 3,607.08 = 1,434.96 : x
2. Step 2: Convert to fraction form
   2,613.80/3,607.08 = 1,434.96/x
3. Step 3: Cross multiply
   2,613.80x = 3,607.08 × 1,434.96
4. Step 4: Simplify right side
   2,613.80x = 5,176,015.52
5. Step 5: Solve for x
   x = 5,176,015.52/2,613.80
6. Step 6: Final answer
   x = 1,980.26