Finding the Fourth Proportional to 1,938.63, 2,675.34 and 1,054.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.63 : 2,675.34 = 1,054.46 : x
2. Step 2: Convert to fraction form
   1,938.63/2,675.34 = 1,054.46/x
3. Step 3: Cross multiply
   1,938.63x = 2,675.34 × 1,054.46
4. Step 4: Simplify right side
   1,938.63x = 2,821,039.02
5. Step 5: Solve for x
   x = 2,821,039.02/1,938.63
6. Step 6: Final answer
   x = 1,455.17