Finding the Fourth Proportional to 1,729.06, 2,386.20 and 1,612.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,729.06 : 2,386.20 = 1,612.42 : x
2. Step 2: Convert to fraction form
   1,729.06/2,386.20 = 1,612.42/x
3. Step 3: Cross multiply
   1,729.06x = 2,386.20 × 1,612.42
4. Step 4: Simplify right side
   1,729.06x = 3,847,556.60
5. Step 5: Solve for x
   x = 3,847,556.60/1,729.06
6. Step 6: Final answer
   x = 2,225.23