Finding the Fourth Proportional to 5,421.02, 8,131.56 and 1,525.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,421.02 : 8,131.56 = 1,525.46 : x
2. Step 2: Convert to fraction form
   5,421.02/8,131.56 = 1,525.46/x
3. Step 3: Cross multiply
   5,421.02x = 8,131.56 × 1,525.46
4. Step 4: Simplify right side
   5,421.02x = 12,404,369.52
5. Step 5: Solve for x
   x = 12,404,369.52/5,421.02
6. Step 6: Final answer
   x = 2,288.20