Finding the Fourth Proportional to 1,673.82, 2,510.42 and 749.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673.82 : 2,510.42 = 749.21 : x
2. Step 2: Convert to fraction form
   1,673.82/2,510.42 = 749.21/x
3. Step 3: Cross multiply
   1,673.82x = 2,510.42 × 749.21
4. Step 4: Simplify right side
   1,673.82x = 1,880,815.47
5. Step 5: Solve for x
   x = 1,880,815.47/1,673.82
6. Step 6: Final answer
   x = 1,123.67