Finding the Fourth Proportional to 2,892.36, 3,990.42 and 1,846.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,892.36 : 3,990.42 = 1,846.20 : x
2. Step 2: Convert to fraction form
   2,892.36/3,990.42 = 1,846.20/x
3. Step 3: Cross multiply
   2,892.36x = 3,990.42 × 1,846.20
4. Step 4: Simplify right side
   2,892.36x = 7,367,113.40
5. Step 5: Solve for x
   x = 7,367,113.40/2,892.36
6. Step 6: Final answer
   x = 2,547.09