Finding the Fourth Proportional to 1,665.32, 2,500.77 and 1,599.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.32 : 2,500.77 = 1,599.10 : x
2. Step 2: Convert to fraction form
   1,665.32/2,500.77 = 1,599.10/x
3. Step 3: Cross multiply
   1,665.32x = 2,500.77 × 1,599.10
4. Step 4: Simplify right side
   1,665.32x = 3,998,973.31
5. Step 5: Solve for x
   x = 3,998,973.31/1,665.32
6. Step 6: Final answer
   x = 2,401.32