Finding the Fourth Proportional to 1,864.29, 2,796.57 and 631.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.29 : 2,796.57 = 631.83 : x
2. Step 2: Convert to fraction form
   1,864.29/2,796.57 = 631.83/x
3. Step 3: Cross multiply
   1,864.29x = 2,796.57 × 631.83
4. Step 4: Simplify right side
   1,864.29x = 1,766,956.82
5. Step 5: Solve for x
   x = 1,766,956.82/1,864.29
6. Step 6: Final answer
   x = 947.79