Finding the Fourth Proportional to 2,200.64, 3,036.56 and 1,316.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.64 : 3,036.56 = 1,316.25 : x
2. Step 2: Convert to fraction form
   2,200.64/3,036.56 = 1,316.25/x
3. Step 3: Cross multiply
   2,200.64x = 3,036.56 × 1,316.25
4. Step 4: Simplify right side
   2,200.64x = 3,996,865.52
5. Step 5: Solve for x
   x = 3,996,865.52/2,200.64
6. Step 6: Final answer
   x = 1,816.23