Finding the Fourth Proportional to 3,992.16, 5,987.34 and 1,526.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.16 : 5,987.34 = 1,526.10 : x
2. Step 2: Convert to fraction form
   3,992.16/5,987.34 = 1,526.10/x
3. Step 3: Cross multiply
   3,992.16x = 5,987.34 × 1,526.10
4. Step 4: Simplify right side
   3,992.16x = 9,137,279.57
5. Step 5: Solve for x
   x = 9,137,279.57/3,992.16
6. Step 6: Final answer
   x = 2,288.81