Finding the Fourth Proportional to 1,381.32, 1,906.23 and 751.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.32 : 1,906.23 = 751.83 : x
2. Step 2: Convert to fraction form
   1,381.32/1,906.23 = 751.83/x
3. Step 3: Cross multiply
   1,381.32x = 1,906.23 × 751.83
4. Step 4: Simplify right side
   1,381.32x = 1,433,160.90
5. Step 5: Solve for x
   x = 1,433,160.90/1,381.32
6. Step 6: Final answer
   x = 1,037.53