Finding the Fourth Proportional to 1,938.28, 2,674.77 and 1,054.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.28 : 2,674.77 = 1,054.09 : x
2. Step 2: Convert to fraction form
   1,938.28/2,674.77 = 1,054.09/x
3. Step 3: Cross multiply
   1,938.28x = 2,674.77 × 1,054.09
4. Step 4: Simplify right side
   1,938.28x = 2,819,448.31
5. Step 5: Solve for x
   x = 2,819,448.31/1,938.28
6. Step 6: Final answer
   x = 1,454.61