Finding the Fourth Proportional to 1,384.56, 1,910.63 and 755.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.56 : 1,910.63 = 755.09 : x
2. Step 2: Convert to fraction form
   1,384.56/1,910.63 = 755.09/x
3. Step 3: Cross multiply
   1,384.56x = 1,910.63 × 755.09
4. Step 4: Simplify right side
   1,384.56x = 1,442,684.28
5. Step 5: Solve for x
   x = 1,442,684.28/1,384.56
6. Step 6: Final answer
   x = 1,041.98