Finding the Fourth Proportional to 1,851.12, 2,774.16 and 1,082.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.12 : 2,774.16 = 1,082.16 : x
2. Step 2: Convert to fraction form
   1,851.12/2,774.16 = 1,082.16/x
3. Step 3: Cross multiply
   1,851.12x = 2,774.16 × 1,082.16
4. Step 4: Simplify right side
   1,851.12x = 3,002,084.99
5. Step 5: Solve for x
   x = 3,002,084.99/1,851.12
6. Step 6: Final answer
   x = 1,621.77