Finding the Fourth Proportional to 1,938.17, 2,673.87 and 1,274.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.17 : 2,673.87 = 1,274.15 : x
2. Step 2: Convert to fraction form
   1,938.17/2,673.87 = 1,274.15/x
3. Step 3: Cross multiply
   1,938.17x = 2,673.87 × 1,274.15
4. Step 4: Simplify right side
   1,938.17x = 3,406,911.46
5. Step 5: Solve for x
   x = 3,406,911.46/1,938.17
6. Step 6: Final answer
   x = 1,757.80