Finding the Fourth Proportional to 1,993.79, 2,748.57 and 1,402.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.79 : 2,748.57 = 1,402.49 : x
2. Step 2: Convert to fraction form
   1,993.79/2,748.57 = 1,402.49/x
3. Step 3: Cross multiply
   1,993.79x = 2,748.57 × 1,402.49
4. Step 4: Simplify right side
   1,993.79x = 3,854,839.92
5. Step 5: Solve for x
   x = 3,854,839.92/1,993.79
6. Step 6: Final answer
   x = 1,933.43