Finding the Fourth Proportional to 1,748.84, 2,621.78 and 774.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748.84 : 2,621.78 = 774.41 : x
2. Step 2: Convert to fraction form
   1,748.84/2,621.78 = 774.41/x
3. Step 3: Cross multiply
   1,748.84x = 2,621.78 × 774.41
4. Step 4: Simplify right side
   1,748.84x = 2,030,335.33
5. Step 5: Solve for x
   x = 2,030,335.33/1,748.84
6. Step 6: Final answer
   x = 1,160.96