Finding the Fourth Proportional to 1,379.56, 1,903.78 and 750.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379.56 : 1,903.78 = 750.10 : x
2. Step 2: Convert to fraction form
   1,379.56/1,903.78 = 750.10/x
3. Step 3: Cross multiply
   1,379.56x = 1,903.78 × 750.10
4. Step 4: Simplify right side
   1,379.56x = 1,428,025.38
5. Step 5: Solve for x
   x = 1,428,025.38/1,379.56
6. Step 6: Final answer
   x = 1,035.13