Finding the Fourth Proportional to 2,113.38, 3,171.69 and 942.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.38 : 3,171.69 = 942.93 : x
2. Step 2: Convert to fraction form
   2,113.38/3,171.69 = 942.93/x
3. Step 3: Cross multiply
   2,113.38x = 3,171.69 × 942.93
4. Step 4: Simplify right side
   2,113.38x = 2,990,681.65
5. Step 5: Solve for x
   x = 2,990,681.65/2,113.38
6. Step 6: Final answer
   x = 1,415.12