Finding the Fourth Proportional to 2,612.68, 3,605.42 and 1,417.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.68 : 3,605.42 = 1,417.61 : x
2. Step 2: Convert to fraction form
   2,612.68/3,605.42 = 1,417.61/x
3. Step 3: Cross multiply
   2,612.68x = 3,605.42 × 1,417.61
4. Step 4: Simplify right side
   2,612.68x = 5,111,079.45
5. Step 5: Solve for x
   x = 5,111,079.45/2,612.68
6. Step 6: Final answer
   x = 1,956.26