Finding the Fourth Proportional to 2,219.94, 3,326.73 and 1,630.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.94 : 3,326.73 = 1,630.31 : x
2. Step 2: Convert to fraction form
   2,219.94/3,326.73 = 1,630.31/x
3. Step 3: Cross multiply
   2,219.94x = 3,326.73 × 1,630.31
4. Step 4: Simplify right side
   2,219.94x = 5,423,600.21
5. Step 5: Solve for x
   x = 5,423,600.21/2,219.94
6. Step 6: Final answer
   x = 2,443.13