Finding the Fourth Proportional to 1,384.02, 1,909.91 and 754.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.02 : 1,909.91 = 754.57 : x
2. Step 2: Convert to fraction form
   1,384.02/1,909.91 = 754.57/x
3. Step 3: Cross multiply
   1,384.02x = 1,909.91 × 754.57
4. Step 4: Simplify right side
   1,384.02x = 1,441,151.24
5. Step 5: Solve for x
   x = 1,441,151.24/1,384.02
6. Step 6: Final answer
   x = 1,041.28