Finding the Fourth Proportional to 3,200.18, 4,415.94 and 1,783.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,200.18 : 4,415.94 = 1,783.72 : x
2. Step 2: Convert to fraction form
   3,200.18/4,415.94 = 1,783.72/x
3. Step 3: Cross multiply
   3,200.18x = 4,415.94 × 1,783.72
4. Step 4: Simplify right side
   3,200.18x = 7,876,800.50
5. Step 5: Solve for x
   x = 7,876,800.50/3,200.18
6. Step 6: Final answer
   x = 2,461.36