Finding the Fourth Proportional to 1,938.39, 2,674.98 and 1,054.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.39 : 2,674.98 = 1,054.22 : x
2. Step 2: Convert to fraction form
   1,938.39/2,674.98 = 1,054.22/x
3. Step 3: Cross multiply
   1,938.39x = 2,674.98 × 1,054.22
4. Step 4: Simplify right side
   1,938.39x = 2,820,004.04
5. Step 5: Solve for x
   x = 2,820,004.04/1,938.39
6. Step 6: Final answer
   x = 1,454.82