Finding the Fourth Proportional to 1,274.23, 1,899.37 and 1,134.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274.23 : 1,899.37 = 1,134.69 : x
2. Step 2: Convert to fraction form
   1,274.23/1,899.37 = 1,134.69/x
3. Step 3: Cross multiply
   1,274.23x = 1,899.37 × 1,134.69
4. Step 4: Simplify right side
   1,274.23x = 2,155,196.15
5. Step 5: Solve for x
   x = 2,155,196.15/1,274.23
6. Step 6: Final answer
   x = 1,691.37