Finding the Fourth Proportional to 3,724.89, 5,140.82 and 2,152.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,724.89 : 5,140.82 = 2,152.98 : x
2. Step 2: Convert to fraction form
   3,724.89/5,140.82 = 2,152.98/x
3. Step 3: Cross multiply
   3,724.89x = 5,140.82 × 2,152.98
4. Step 4: Simplify right side
   3,724.89x = 11,068,075.92
5. Step 5: Solve for x
   x = 11,068,075.92/3,724.89
6. Step 6: Final answer
   x = 2,971.39