Finding the Fourth Proportional to 1,938.40, 2,673.82 and 1,152.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.40 : 2,673.82 = 1,152.32 : x
2. Step 2: Convert to fraction form
   1,938.40/2,673.82 = 1,152.32/x
3. Step 3: Cross multiply
   1,938.40x = 2,673.82 × 1,152.32
4. Step 4: Simplify right side
   1,938.40x = 3,081,096.26
5. Step 5: Solve for x
   x = 3,081,096.26/1,938.40
6. Step 6: Final answer
   x = 1,589.50