Finding the Fourth Proportional to 3,870.50, 5,343.12 and 2,474.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.50 : 5,343.12 = 2,474.06 : x
2. Step 2: Convert to fraction form
   3,870.50/5,343.12 = 2,474.06/x
3. Step 3: Cross multiply
   3,870.50x = 5,343.12 × 2,474.06
4. Step 4: Simplify right side
   3,870.50x = 13,219,172.75
5. Step 5: Solve for x
   x = 13,219,172.75/3,870.50
6. Step 6: Final answer
   x = 3,415.37