Finding the Fourth Proportional to 2,200.52, 3,036.64 and 1,315.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.52 : 3,036.64 = 1,315.80 : x
2. Step 2: Convert to fraction form
   2,200.52/3,036.64 = 1,315.80/x
3. Step 3: Cross multiply
   2,200.52x = 3,036.64 × 1,315.80
4. Step 4: Simplify right side
   2,200.52x = 3,995,610.91
5. Step 5: Solve for x
   x = 3,995,610.91/2,200.52
6. Step 6: Final answer
   x = 1,815.76