Finding the Fourth Proportional to 1,913.79, 2,641.22 and 1,168.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913.79 : 2,641.22 = 1,168.25 : x
2. Step 2: Convert to fraction form
   1,913.79/2,641.22 = 1,168.25/x
3. Step 3: Cross multiply
   1,913.79x = 2,641.22 × 1,168.25
4. Step 4: Simplify right side
   1,913.79x = 3,085,605.27
5. Step 5: Solve for x
   x = 3,085,605.27/1,913.79
6. Step 6: Final answer
   x = 1,612.30