Finding the Fourth Proportional to 1,931.43, 2,896.24 and 836.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.43 : 2,896.24 = 836.72 : x
2. Step 2: Convert to fraction form
   1,931.43/2,896.24 = 836.72/x
3. Step 3: Cross multiply
   1,931.43x = 2,896.24 × 836.72
4. Step 4: Simplify right side
   1,931.43x = 2,423,341.93
5. Step 5: Solve for x
   x = 2,423,341.93/1,931.43
6. Step 6: Final answer
   x = 1,254.69