Finding the Fourth Proportional to 1,824.72, 2,515.86 and 1,558.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,824.72 : 2,515.86 = 1,558.68 : x
2. Step 2: Convert to fraction form
   1,824.72/2,515.86 = 1,558.68/x
3. Step 3: Cross multiply
   1,824.72x = 2,515.86 × 1,558.68
4. Step 4: Simplify right side
   1,824.72x = 3,921,420.66
5. Step 5: Solve for x
   x = 3,921,420.66/1,824.72
6. Step 6: Final answer
   x = 2,149.05