Finding the Fourth Proportional to 5,348.16, 7,380.56 and 2,990.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,348.16 : 7,380.56 = 2,990.56 : x
2. Step 2: Convert to fraction form
   5,348.16/7,380.56 = 2,990.56/x
3. Step 3: Cross multiply
   5,348.16x = 7,380.56 × 2,990.56
4. Step 4: Simplify right side
   5,348.16x = 22,072,007.51
5. Step 5: Solve for x
   x = 22,072,007.51/5,348.16
6. Step 6: Final answer
   x = 4,127.03