Finding the Fourth Proportional to 1,531.05, 2,294.52 and 836.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.05 : 2,294.52 = 836.69 : x
2. Step 2: Convert to fraction form
   1,531.05/2,294.52 = 836.69/x
3. Step 3: Cross multiply
   1,531.05x = 2,294.52 × 836.69
4. Step 4: Simplify right side
   1,531.05x = 1,919,790.47
5. Step 5: Solve for x
   x = 1,919,790.47/1,531.05
6. Step 6: Final answer
   x = 1,253.90