Finding the Fourth Proportional to 5,343.91, 7,374.59 and 2,986.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,343.91 : 7,374.59 = 2,986.05 : x
2. Step 2: Convert to fraction form
   5,343.91/7,374.59 = 2,986.05/x
3. Step 3: Cross multiply
   5,343.91x = 7,374.59 × 2,986.05
4. Step 4: Simplify right side
   5,343.91x = 22,020,894.47
5. Step 5: Solve for x
   x = 22,020,894.47/5,343.91
6. Step 6: Final answer
   x = 4,120.75