Finding the Fourth Proportional to 3,204.78, 4,422.72 and 1,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,204.78 : 4,422.72 = 1,807.50 : x
2. Step 2: Convert to fraction form
   3,204.78/4,422.72 = 1,807.50/x
3. Step 3: Cross multiply
   3,204.78x = 4,422.72 × 1,807.50
4. Step 4: Simplify right side
   3,204.78x = 7,994,066.40
5. Step 5: Solve for x
   x = 7,994,066.40/3,204.78
6. Step 6: Final answer
   x = 2,494.42