Finding the Fourth Proportional to 1,938.67, 2,675.28 and 1,152.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.67 : 2,675.28 = 1,152.79 : x
2. Step 2: Convert to fraction form
   1,938.67/2,675.28 = 1,152.79/x
3. Step 3: Cross multiply
   1,938.67x = 2,675.28 × 1,152.79
4. Step 4: Simplify right side
   1,938.67x = 3,084,036.03
5. Step 5: Solve for x
   x = 3,084,036.03/1,938.67
6. Step 6: Final answer
   x = 1,590.80