Finding the Fourth Proportional to 2,319.12, 3,200.56 and 1,435.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.12 : 3,200.56 = 1,435.43 : x
2. Step 2: Convert to fraction form
   2,319.12/3,200.56 = 1,435.43/x
3. Step 3: Cross multiply
   2,319.12x = 3,200.56 × 1,435.43
4. Step 4: Simplify right side
   2,319.12x = 4,594,184.25
5. Step 5: Solve for x
   x = 4,594,184.25/2,319.12
6. Step 6: Final answer
   x = 1,981.00