Finding the Fourth Proportional to 2,830.98, 3,906.78 and 1,572.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.98 : 3,906.78 = 1,572.15 : x
2. Step 2: Convert to fraction form
   2,830.98/3,906.78 = 1,572.15/x
3. Step 3: Cross multiply
   2,830.98x = 3,906.78 × 1,572.15
4. Step 4: Simplify right side
   2,830.98x = 6,142,044.18
5. Step 5: Solve for x
   x = 6,142,044.18/2,830.98
6. Step 6: Final answer
   x = 2,169.58