Finding the Fourth Proportional to 3,271.58, 4,909.46 and 1,191.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,271.58 : 4,909.46 = 1,191.39 : x
2. Step 2: Convert to fraction form
   3,271.58/4,909.46 = 1,191.39/x
3. Step 3: Cross multiply
   3,271.58x = 4,909.46 × 1,191.39
4. Step 4: Simplify right side
   3,271.58x = 5,849,081.55
5. Step 5: Solve for x
   x = 5,849,081.55/3,271.58
6. Step 6: Final answer
   x = 1,787.85