Finding the Fourth Proportional to 1,381.04, 1,905.86 and 751.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.04 : 1,905.86 = 751.61 : x
2. Step 2: Convert to fraction form
   1,381.04/1,905.86 = 751.61/x
3. Step 3: Cross multiply
   1,381.04x = 1,905.86 × 751.61
4. Step 4: Simplify right side
   1,381.04x = 1,432,463.43
5. Step 5: Solve for x
   x = 1,432,463.43/1,381.04
6. Step 6: Final answer
   x = 1,037.24