Finding the Fourth Proportional to 2,830.96, 3,906.04 and 1,902.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.96 : 3,906.04 = 1,902.16 : x
2. Step 2: Convert to fraction form
   2,830.96/3,906.04 = 1,902.16/x
3. Step 3: Cross multiply
   2,830.96x = 3,906.04 × 1,902.16
4. Step 4: Simplify right side
   2,830.96x = 7,429,913.05
5. Step 5: Solve for x
   x = 7,429,913.05/2,830.96
6. Step 6: Final answer
   x = 2,624.52