Finding the Fourth Proportional to 1,408.10, 1,943.73 and 1,015.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.10 : 1,943.73 = 1,015.65 : x
2. Step 2: Convert to fraction form
   1,408.10/1,943.73 = 1,015.65/x
3. Step 3: Cross multiply
   1,408.10x = 1,943.73 × 1,015.65
4. Step 4: Simplify right side
   1,408.10x = 1,974,149.37
5. Step 5: Solve for x
   x = 1,974,149.37/1,408.10
6. Step 6: Final answer
   x = 1,402.00