Finding the Fourth Proportional to 2,118.17, 2,923.25 and 1,233.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.17 : 2,923.25 = 1,233.78 : x
2. Step 2: Convert to fraction form
   2,118.17/2,923.25 = 1,233.78/x
3. Step 3: Cross multiply
   2,118.17x = 2,923.25 × 1,233.78
4. Step 4: Simplify right side
   2,118.17x = 3,606,641.22
5. Step 5: Solve for x
   x = 3,606,641.22/2,118.17
6. Step 6: Final answer
   x = 1,702.72