Finding the Fourth Proportional to 2,118.78, 2,925.27 and 1,373.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.78 : 2,925.27 = 1,373.94 : x
2. Step 2: Convert to fraction form
   2,118.78/2,925.27 = 1,373.94/x
3. Step 3: Cross multiply
   2,118.78x = 2,925.27 × 1,373.94
4. Step 4: Simplify right side
   2,118.78x = 4,019,145.46
5. Step 5: Solve for x
   x = 4,019,145.46/2,118.78
6. Step 6: Final answer
   x = 1,896.91