Finding the Fourth Proportional to 1,113.37, 1,669.69 and 372.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113.37 : 1,669.69 = 372.82 : x
2. Step 2: Convert to fraction form
   1,113.37/1,669.69 = 372.82/x
3. Step 3: Cross multiply
   1,113.37x = 1,669.69 × 372.82
4. Step 4: Simplify right side
   1,113.37x = 622,493.83
5. Step 5: Solve for x
   x = 622,493.83/1,113.37
6. Step 6: Final answer
   x = 559.11