Finding the Fourth Proportional to 2,478.26, 3,419.98 and 1,430.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478.26 : 3,419.98 = 1,430.32 : x
2. Step 2: Convert to fraction form
   2,478.26/3,419.98 = 1,430.32/x
3. Step 3: Cross multiply
   2,478.26x = 3,419.98 × 1,430.32
4. Step 4: Simplify right side
   2,478.26x = 4,891,665.79
5. Step 5: Solve for x
   x = 4,891,665.79/2,478.26
6. Step 6: Final answer
   x = 1,973.83