Finding the Fourth Proportional to 2,415.50, 3,332.38 and 1,628.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.50 : 3,332.38 = 1,628.18 : x
2. Step 2: Convert to fraction form
   2,415.50/3,332.38 = 1,628.18/x
3. Step 3: Cross multiply
   2,415.50x = 3,332.38 × 1,628.18
4. Step 4: Simplify right side
   2,415.50x = 5,425,714.47
5. Step 5: Solve for x
   x = 5,425,714.47/2,415.50
6. Step 6: Final answer
   x = 2,246.21