Finding the Fourth Proportional to 1,938.52, 2,675.16 and 1,054.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.52 : 2,675.16 = 1,054.31 : x
2. Step 2: Convert to fraction form
   1,938.52/2,675.16 = 1,054.31/x
3. Step 3: Cross multiply
   1,938.52x = 2,675.16 × 1,054.31
4. Step 4: Simplify right side
   1,938.52x = 2,820,434.56
5. Step 5: Solve for x
   x = 2,820,434.56/1,938.52
6. Step 6: Final answer
   x = 1,454.94