Finding the Fourth Proportional to 1,599.89, 2,385.72 and 1,488.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,599.89 : 2,385.72 = 1,488.92 : x
2. Step 2: Convert to fraction form
   1,599.89/2,385.72 = 1,488.92/x
3. Step 3: Cross multiply
   1,599.89x = 2,385.72 × 1,488.92
4. Step 4: Simplify right side
   1,599.89x = 3,552,134.29
5. Step 5: Solve for x
   x = 3,552,134.29/1,599.89
6. Step 6: Final answer
   x = 2,220.24