Finding the Fourth Proportional to 1,003.72, 1,498.13 and 841.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.72 : 1,498.13 = 841.96 : x
2. Step 2: Convert to fraction form
   1,003.72/1,498.13 = 841.96/x
3. Step 3: Cross multiply
   1,003.72x = 1,498.13 × 841.96
4. Step 4: Simplify right side
   1,003.72x = 1,261,365.53
5. Step 5: Solve for x
   x = 1,261,365.53/1,003.72
6. Step 6: Final answer
   x = 1,256.69