Finding the Fourth Proportional to 1,788.89, 2,682.42 and 748.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.89 : 2,682.42 = 748.61 : x
2. Step 2: Convert to fraction form
   1,788.89/2,682.42 = 748.61/x
3. Step 3: Cross multiply
   1,788.89x = 2,682.42 × 748.61
4. Step 4: Simplify right side
   1,788.89x = 2,008,093.14
5. Step 5: Solve for x
   x = 2,008,093.14/1,788.89
6. Step 6: Final answer
   x = 1,122.53