Finding the Fourth Proportional to 2,408.40, 3,612.83 and 742.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408.40 : 3,612.83 = 742.91 : x
2. Step 2: Convert to fraction form
   2,408.40/3,612.83 = 742.91/x
3. Step 3: Cross multiply
   2,408.40x = 3,612.83 × 742.91
4. Step 4: Simplify right side
   2,408.40x = 2,683,985.76
5. Step 5: Solve for x
   x = 2,683,985.76/2,408.40
6. Step 6: Final answer
   x = 1,114.43