Finding the Fourth Proportional to 1,938.09, 2,674.55 and 1,053.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.09 : 2,674.55 = 1,053.89 : x
2. Step 2: Convert to fraction form
   1,938.09/2,674.55 = 1,053.89/x
3. Step 3: Cross multiply
   1,938.09x = 2,674.55 × 1,053.89
4. Step 4: Simplify right side
   1,938.09x = 2,818,662.86
5. Step 5: Solve for x
   x = 2,818,662.86/1,938.09
6. Step 6: Final answer
   x = 1,454.35