Finding the Fourth Proportional to 2,729.79, 4,092.59 and 1,412.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,729.79 : 4,092.59 = 1,412.12 : x
2. Step 2: Convert to fraction form
   2,729.79/4,092.59 = 1,412.12/x
3. Step 3: Cross multiply
   2,729.79x = 4,092.59 × 1,412.12
4. Step 4: Simplify right side
   2,729.79x = 5,779,241.95
5. Step 5: Solve for x
   x = 5,779,241.95/2,729.79
6. Step 6: Final answer
   x = 2,117.10