Finding the Fourth Proportional to 1,408.88, 2,113.55 and 1,148.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.88 : 2,113.55 = 1,148.27 : x
2. Step 2: Convert to fraction form
   1,408.88/2,113.55 = 1,148.27/x
3. Step 3: Cross multiply
   1,408.88x = 2,113.55 × 1,148.27
4. Step 4: Simplify right side
   1,408.88x = 2,426,909.75
5. Step 5: Solve for x
   x = 2,426,909.75/1,408.88
6. Step 6: Final answer
   x = 1,722.59