Finding the Fourth Proportional to 1,938.30, 2,674.76 and 1,054.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.30 : 2,674.76 = 1,054.08 : x
2. Step 2: Convert to fraction form
   1,938.30/2,674.76 = 1,054.08/x
3. Step 3: Cross multiply
   1,938.30x = 2,674.76 × 1,054.08
4. Step 4: Simplify right side
   1,938.30x = 2,819,411.02
5. Step 5: Solve for x
   x = 2,819,411.02/1,938.30
6. Step 6: Final answer
   x = 1,454.58