Finding the Fourth Proportional to 1,938.50, 2,675.14 and 1,054.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.50 : 2,675.14 = 1,054.30 : x
2. Step 2: Convert to fraction form
   1,938.50/2,675.14 = 1,054.30/x
3. Step 3: Cross multiply
   1,938.50x = 2,675.14 × 1,054.30
4. Step 4: Simplify right side
   1,938.50x = 2,820,390.78
5. Step 5: Solve for x
   x = 2,820,390.78/1,938.50
6. Step 6: Final answer
   x = 1,454.94