Finding the Fourth Proportional to 1,470.73, 2,216.22 and 1,216.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,470.73 : 2,216.22 = 1,216.45 : x
2. Step 2: Convert to fraction form
   1,470.73/2,216.22 = 1,216.45/x
3. Step 3: Cross multiply
   1,470.73x = 2,216.22 × 1,216.45
4. Step 4: Simplify right side
   1,470.73x = 2,695,920.82
5. Step 5: Solve for x
   x = 2,695,920.82/1,470.73
6. Step 6: Final answer
   x = 1,833.05