Finding the Fourth Proportional to 1,938.61, 2,674.24 and 1,348.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.61 : 2,674.24 = 1,348.12 : x
2. Step 2: Convert to fraction form
   1,938.61/2,674.24 = 1,348.12/x
3. Step 3: Cross multiply
   1,938.61x = 2,674.24 × 1,348.12
4. Step 4: Simplify right side
   1,938.61x = 3,605,196.43
5. Step 5: Solve for x
   x = 3,605,196.43/1,938.61
6. Step 6: Final answer
   x = 1,859.68