Finding the Fourth Proportional to 3,927.24, 5,892.72 and 1,980.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,927.24 : 5,892.72 = 1,980.84 : x
2. Step 2: Convert to fraction form
   3,927.24/5,892.72 = 1,980.84/x
3. Step 3: Cross multiply
   3,927.24x = 5,892.72 × 1,980.84
4. Step 4: Simplify right side
   3,927.24x = 11,672,535.48
5. Step 5: Solve for x
   x = 11,672,535.48/3,927.24
6. Step 6: Final answer
   x = 2,972.20