Finding the Fourth Proportional to 2,515.54, 3,470.43 and 1,583.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515.54 : 3,470.43 = 1,583.50 : x
2. Step 2: Convert to fraction form
   2,515.54/3,470.43 = 1,583.50/x
3. Step 3: Cross multiply
   2,515.54x = 3,470.43 × 1,583.50
4. Step 4: Simplify right side
   2,515.54x = 5,495,425.91
5. Step 5: Solve for x
   x = 5,495,425.91/2,515.54
6. Step 6: Final answer
   x = 2,184.59