Finding the Fourth Proportional to 1,921.32, 2,651.56 and 1,082.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.32 : 2,651.56 = 1,082.16 : x
2. Step 2: Convert to fraction form
   1,921.32/2,651.56 = 1,082.16/x
3. Step 3: Cross multiply
   1,921.32x = 2,651.56 × 1,082.16
4. Step 4: Simplify right side
   1,921.32x = 2,869,412.17
5. Step 5: Solve for x
   x = 2,869,412.17/1,921.32
6. Step 6: Final answer
   x = 1,493.46