Finding the Fourth Proportional to 2,910.42, 4,367.43 and 1,155.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,910.42 : 4,367.43 = 1,155.12 : x
2. Step 2: Convert to fraction form
   2,910.42/4,367.43 = 1,155.12/x
3. Step 3: Cross multiply
   2,910.42x = 4,367.43 × 1,155.12
4. Step 4: Simplify right side
   2,910.42x = 5,044,905.74
5. Step 5: Solve for x
   x = 5,044,905.74/2,910.42
6. Step 6: Final answer
   x = 1,733.39