Finding the Fourth Proportional to 1,470.50, 2,205.83 and 885.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,470.50 : 2,205.83 = 885.79 : x
2. Step 2: Convert to fraction form
   1,470.50/2,205.83 = 885.79/x
3. Step 3: Cross multiply
   1,470.50x = 2,205.83 × 885.79
4. Step 4: Simplify right side
   1,470.50x = 1,953,894.72
5. Step 5: Solve for x
   x = 1,953,894.72/1,470.50
6. Step 6: Final answer
   x = 1,328.72