Finding the Fourth Proportional to 3,978.03, 5,490.26 and 2,384.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.03 : 5,490.26 = 2,384.76 : x
2. Step 2: Convert to fraction form
   3,978.03/5,490.26 = 2,384.76/x
3. Step 3: Cross multiply
   3,978.03x = 5,490.26 × 2,384.76
4. Step 4: Simplify right side
   3,978.03x = 13,092,940.51
5. Step 5: Solve for x
   x = 13,092,940.51/3,978.03
6. Step 6: Final answer
   x = 3,291.31