Finding the Fourth Proportional to 2,212.38, 3,315.47 and 1,748.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.38 : 3,315.47 = 1,748.12 : x
2. Step 2: Convert to fraction form
   2,212.38/3,315.47 = 1,748.12/x
3. Step 3: Cross multiply
   2,212.38x = 3,315.47 × 1,748.12
4. Step 4: Simplify right side
   2,212.38x = 5,795,814.10
5. Step 5: Solve for x
   x = 5,795,814.10/2,212.38
6. Step 6: Final answer
   x = 2,619.72