Finding the Fourth Proportional to 1,938.32, 2,674.91 and 1,054.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.32 : 2,674.91 = 1,054.15 : x
2. Step 2: Convert to fraction form
   1,938.32/2,674.91 = 1,054.15/x
3. Step 3: Cross multiply
   1,938.32x = 2,674.91 × 1,054.15
4. Step 4: Simplify right side
   1,938.32x = 2,819,752.32
5. Step 5: Solve for x
   x = 2,819,752.32/1,938.32
6. Step 6: Final answer
   x = 1,454.74