Finding the Fourth Proportional to 2,874.02, 3,967.45 and 1,930.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.02 : 3,967.45 = 1,930.46 : x
2. Step 2: Convert to fraction form
   2,874.02/3,967.45 = 1,930.46/x
3. Step 3: Cross multiply
   2,874.02x = 3,967.45 × 1,930.46
4. Step 4: Simplify right side
   2,874.02x = 7,658,978.86
5. Step 5: Solve for x
   x = 7,658,978.86/2,874.02
6. Step 6: Final answer
   x = 2,664.91