Finding the Fourth Proportional to 1,617.59, 2,425.77 and 1,274.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617.59 : 2,425.77 = 1,274.96 : x
2. Step 2: Convert to fraction form
   1,617.59/2,425.77 = 1,274.96/x
3. Step 3: Cross multiply
   1,617.59x = 2,425.77 × 1,274.96
4. Step 4: Simplify right side
   1,617.59x = 3,092,747.59
5. Step 5: Solve for x
   x = 3,092,747.59/1,617.59
6. Step 6: Final answer
   x = 1,911.95