Finding the Fourth Proportional to 2,830.16, 3,907.96 and 1,837.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.16 : 3,907.96 = 1,837.15 : x
2. Step 2: Convert to fraction form
   2,830.16/3,907.96 = 1,837.15/x
3. Step 3: Cross multiply
   2,830.16x = 3,907.96 × 1,837.15
4. Step 4: Simplify right side
   2,830.16x = 7,179,494.35
5. Step 5: Solve for x
   x = 7,179,494.35/2,830.16
6. Step 6: Final answer
   x = 2,536.78