Finding the Fourth Proportional to 1,082.12, 1,493.37 and 634.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.12 : 1,493.37 = 634.05 : x
2. Step 2: Convert to fraction form
   1,082.12/1,493.37 = 634.05/x
3. Step 3: Cross multiply
   1,082.12x = 1,493.37 × 634.05
4. Step 4: Simplify right side
   1,082.12x = 946,871.25
5. Step 5: Solve for x
   x = 946,871.25/1,082.12
6. Step 6: Final answer
   x = 875.02