Finding the Fourth Proportional to 2,990.83, 4,483.33 and 1,430.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,990.83 : 4,483.33 = 1,430.43 : x
2. Step 2: Convert to fraction form
   2,990.83/4,483.33 = 1,430.43/x
3. Step 3: Cross multiply
   2,990.83x = 4,483.33 × 1,430.43
4. Step 4: Simplify right side
   2,990.83x = 6,413,086.16
5. Step 5: Solve for x
   x = 6,413,086.16/2,990.83
6. Step 6: Final answer
   x = 2,144.25