Finding the Fourth Proportional to 1,516.32, 2,274.72 and 1,022.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,516.32 : 2,274.72 = 1,022.40 : x
2. Step 2: Convert to fraction form
   1,516.32/2,274.72 = 1,022.40/x
3. Step 3: Cross multiply
   1,516.32x = 2,274.72 × 1,022.40
4. Step 4: Simplify right side
   1,516.32x = 2,325,673.73
5. Step 5: Solve for x
   x = 2,325,673.73/1,516.32
6. Step 6: Final answer
   x = 1,533.76