Finding the Fourth Proportional to 1,990.35, 2,743.41 and 1,429.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.35 : 2,743.41 = 1,429.92 : x
2. Step 2: Convert to fraction form
   1,990.35/2,743.41 = 1,429.92/x
3. Step 3: Cross multiply
   1,990.35x = 2,743.41 × 1,429.92
4. Step 4: Simplify right side
   1,990.35x = 3,922,856.83
5. Step 5: Solve for x
   x = 3,922,856.83/1,990.35
6. Step 6: Final answer
   x = 1,970.94