Finding the Fourth Proportional to 1,625.93, 2,243.78 and 879.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,625.93 : 2,243.78 = 879.89 : x
2. Step 2: Convert to fraction form
   1,625.93/2,243.78 = 879.89/x
3. Step 3: Cross multiply
   1,625.93x = 2,243.78 × 879.89
4. Step 4: Simplify right side
   1,625.93x = 1,974,280.82
5. Step 5: Solve for x
   x = 1,974,280.82/1,625.93
6. Step 6: Final answer
   x = 1,214.25