Finding the Fourth Proportional to 2,118.02, 2,922.90 and 1,233.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.02 : 2,922.90 = 1,233.78 : x
2. Step 2: Convert to fraction form
   2,118.02/2,922.90 = 1,233.78/x
3. Step 3: Cross multiply
   2,118.02x = 2,922.90 × 1,233.78
4. Step 4: Simplify right side
   2,118.02x = 3,606,215.56
5. Step 5: Solve for x
   x = 3,606,215.56/2,118.02
6. Step 6: Final answer
   x = 1,702.64