Finding the Fourth Proportional to 1,617.62, 2,423.72 and 1,556.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617.62 : 2,423.72 = 1,556.86 : x
2. Step 2: Convert to fraction form
   1,617.62/2,423.72 = 1,556.86/x
3. Step 3: Cross multiply
   1,617.62x = 2,423.72 × 1,556.86
4. Step 4: Simplify right side
   1,617.62x = 3,773,392.72
5. Step 5: Solve for x
   x = 3,773,392.72/1,617.62
6. Step 6: Final answer
   x = 2,332.68