Finding the Fourth Proportional to 2,622.74, 3,931.35 and 1,161.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.74 : 3,931.35 = 1,161.71 : x
2. Step 2: Convert to fraction form
   2,622.74/3,931.35 = 1,161.71/x
3. Step 3: Cross multiply
   2,622.74x = 3,931.35 × 1,161.71
4. Step 4: Simplify right side
   2,622.74x = 4,567,088.61
5. Step 5: Solve for x
   x = 4,567,088.61/2,622.74
6. Step 6: Final answer
   x = 1,741.34