Finding the Fourth Proportional to 2,103.34, 2,902.56 and 1,317.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.34 : 2,902.56 = 1,317.82 : x
2. Step 2: Convert to fraction form
   2,103.34/2,902.56 = 1,317.82/x
3. Step 3: Cross multiply
   2,103.34x = 2,902.56 × 1,317.82
4. Step 4: Simplify right side
   2,103.34x = 3,825,037.11
5. Step 5: Solve for x
   x = 3,825,037.11/2,103.34
6. Step 6: Final answer
   x = 1,818.56