Finding the Fourth Proportional to 2,012.02, 3,013.14 and 1,393.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.02 : 3,013.14 = 1,393.99 : x
2. Step 2: Convert to fraction form
   2,012.02/3,013.14 = 1,393.99/x
3. Step 3: Cross multiply
   2,012.02x = 3,013.14 × 1,393.99
4. Step 4: Simplify right side
   2,012.02x = 4,200,287.03
5. Step 5: Solve for x
   x = 4,200,287.03/2,012.02
6. Step 6: Final answer
   x = 2,087.60