Finding the Fourth Proportional to 2,103.59, 2,902.08 and 1,357.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.59 : 2,902.08 = 1,357.46 : x
2. Step 2: Convert to fraction form
   2,103.59/2,902.08 = 1,357.46/x
3. Step 3: Cross multiply
   2,103.59x = 2,902.08 × 1,357.46
4. Step 4: Simplify right side
   2,103.59x = 3,939,457.52
5. Step 5: Solve for x
   x = 3,939,457.52/2,103.59
6. Step 6: Final answer
   x = 1,872.73