Finding the Fourth Proportional to 1,381.80, 1,906.82 and 752.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.80 : 1,906.82 = 752.33 : x
2. Step 2: Convert to fraction form
   1,381.80/1,906.82 = 752.33/x
3. Step 3: Cross multiply
   1,381.80x = 1,906.82 × 752.33
4. Step 4: Simplify right side
   1,381.80x = 1,434,547.78
5. Step 5: Solve for x
   x = 1,434,547.78/1,381.80
6. Step 6: Final answer
   x = 1,038.18