Finding the Fourth Proportional to 3,985.08, 5,499.90 and 2,587.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.08 : 5,499.90 = 2,587.32 : x
2. Step 2: Convert to fraction form
   3,985.08/5,499.90 = 2,587.32/x
3. Step 3: Cross multiply
   3,985.08x = 5,499.90 × 2,587.32
4. Step 4: Simplify right side
   3,985.08x = 14,230,001.27
5. Step 5: Solve for x
   x = 14,230,001.27/3,985.08
6. Step 6: Final answer
   x = 3,570.82