Finding the Fourth Proportional to 2,530.55, 3,489.87 and 1,586.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530.55 : 3,489.87 = 1,586.43 : x
2. Step 2: Convert to fraction form
   2,530.55/3,489.87 = 1,586.43/x
3. Step 3: Cross multiply
   2,530.55x = 3,489.87 × 1,586.43
4. Step 4: Simplify right side
   2,530.55x = 5,536,434.46
5. Step 5: Solve for x
   x = 5,536,434.46/2,530.55
6. Step 6: Final answer
   x = 2,187.84