Finding the Fourth Proportional to 2,622.96, 3,933.12 and 1,160.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.96 : 3,933.12 = 1,160.40 : x
2. Step 2: Convert to fraction form
   2,622.96/3,933.12 = 1,160.40/x
3. Step 3: Cross multiply
   2,622.96x = 3,933.12 × 1,160.40
4. Step 4: Simplify right side
   2,622.96x = 4,563,992.45
5. Step 5: Solve for x
   x = 4,563,992.45/2,622.96
6. Step 6: Final answer
   x = 1,740.02