Finding the Fourth Proportional to 2,536.61, 3,499.40 and 1,488.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,536.61 : 3,499.40 = 1,488.20 : x
2. Step 2: Convert to fraction form
   2,536.61/3,499.40 = 1,488.20/x
3. Step 3: Cross multiply
   2,536.61x = 3,499.40 × 1,488.20
4. Step 4: Simplify right side
   2,536.61x = 5,207,793.30
5. Step 5: Solve for x
   x = 5,207,793.30/2,536.61
6. Step 6: Final answer
   x = 2,053.06