Finding the Fourth Proportional to 1,788.38, 2,681.65 and 748.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.38 : 2,681.65 = 748.10 : x
2. Step 2: Convert to fraction form
   1,788.38/2,681.65 = 748.10/x
3. Step 3: Cross multiply
   1,788.38x = 2,681.65 × 748.10
4. Step 4: Simplify right side
   1,788.38x = 2,006,129.89
5. Step 5: Solve for x
   x = 2,006,129.89/1,788.38
6. Step 6: Final answer
   x = 1,121.76