Finding the Fourth Proportional to 2,617.29, 3,612.03 and 1,438.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617.29 : 3,612.03 = 1,438.37 : x
2. Step 2: Convert to fraction form
   2,617.29/3,612.03 = 1,438.37/x
3. Step 3: Cross multiply
   2,617.29x = 3,612.03 × 1,438.37
4. Step 4: Simplify right side
   2,617.29x = 5,195,435.59
5. Step 5: Solve for x
   x = 5,195,435.59/2,617.29
6. Step 6: Final answer
   x = 1,985.04