Finding the Fourth Proportional to 1,380, 1,904.41 and 750.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380 : 1,904.41 = 750.50 : x
2. Step 2: Convert to fraction form
   1,380/1,904.41 = 750.50/x
3. Step 3: Cross multiply
   1,380x = 1,904.41 × 750.50
4. Step 4: Simplify right side
   1,380x = 1,429,259.71
5. Step 5: Solve for x
   x = 1,429,259.71/1,380
6. Step 6: Final answer
   x = 1,035.70