Finding the Fourth Proportional to 2,280.74, 3,150.15 and 1,620.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.74 : 3,150.15 = 1,620.46 : x
2. Step 2: Convert to fraction form
   2,280.74/3,150.15 = 1,620.46/x
3. Step 3: Cross multiply
   2,280.74x = 3,150.15 × 1,620.46
4. Step 4: Simplify right side
   2,280.74x = 5,104,684.19
5. Step 5: Solve for x
   x = 5,104,684.19/2,280.74
6. Step 6: Final answer
   x = 2,238.17