Finding the Fourth Proportional to 1,448.86, 2,173.54 and 755.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448.86 : 2,173.54 = 755.90 : x
2. Step 2: Convert to fraction form
   1,448.86/2,173.54 = 755.90/x
3. Step 3: Cross multiply
   1,448.86x = 2,173.54 × 755.90
4. Step 4: Simplify right side
   1,448.86x = 1,642,978.89
5. Step 5: Solve for x
   x = 1,642,978.89/1,448.86
6. Step 6: Final answer
   x = 1,133.98