Finding the Fourth Proportional to 1,938.83, 2,675.55 and 1,054.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.83 : 2,675.55 = 1,054.61 : x
2. Step 2: Convert to fraction form
   1,938.83/2,675.55 = 1,054.61/x
3. Step 3: Cross multiply
   1,938.83x = 2,675.55 × 1,054.61
4. Step 4: Simplify right side
   1,938.83x = 2,821,648.41
5. Step 5: Solve for x
   x = 2,821,648.41/1,938.83
6. Step 6: Final answer
   x = 1,455.34