Finding the Fourth Proportional to 3,374.71, 5,062.41 and 909.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,374.71 : 5,062.41 = 909.55 : x
2. Step 2: Convert to fraction form
   3,374.71/5,062.41 = 909.55/x
3. Step 3: Cross multiply
   3,374.71x = 5,062.41 × 909.55
4. Step 4: Simplify right side
   3,374.71x = 4,604,515.02
5. Step 5: Solve for x
   x = 4,604,515.02/3,374.71
6. Step 6: Final answer
   x = 1,364.42