Finding the Fourth Proportional to 2,550.12, 3,518.88 and 1,430.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.12 : 3,518.88 = 1,430.83 : x
2. Step 2: Convert to fraction form
   2,550.12/3,518.88 = 1,430.83/x
3. Step 3: Cross multiply
   2,550.12x = 3,518.88 × 1,430.83
4. Step 4: Simplify right side
   2,550.12x = 5,034,901.48
5. Step 5: Solve for x
   x = 5,034,901.48/2,550.12
6. Step 6: Final answer
   x = 1,974.38