Finding the Fourth Proportional to 2,212.01, 3,314.37 and 1,388.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.01 : 3,314.37 = 1,388.24 : x
2. Step 2: Convert to fraction form
   2,212.01/3,314.37 = 1,388.24/x
3. Step 3: Cross multiply
   2,212.01x = 3,314.37 × 1,388.24
4. Step 4: Simplify right side
   2,212.01x = 4,601,141.01
5. Step 5: Solve for x
   x = 4,601,141.01/2,212.01
6. Step 6: Final answer
   x = 2,080.07