Finding the Fourth Proportional to 1,625.89, 2,243.73 and 879.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,625.89 : 2,243.73 = 879.85 : x
2. Step 2: Convert to fraction form
   1,625.89/2,243.73 = 879.85/x
3. Step 3: Cross multiply
   1,625.89x = 2,243.73 × 879.85
4. Step 4: Simplify right side
   1,625.89x = 1,974,151.45
5. Step 5: Solve for x
   x = 1,974,151.45/1,625.89
6. Step 6: Final answer
   x = 1,214.20