Finding the Fourth Proportional to 3,898.98, 5,844.30 and 1,816.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,898.98 : 5,844.30 = 1,816.56 : x
2. Step 2: Convert to fraction form
   3,898.98/5,844.30 = 1,816.56/x
3. Step 3: Cross multiply
   3,898.98x = 5,844.30 × 1,816.56
4. Step 4: Simplify right side
   3,898.98x = 10,616,521.61
5. Step 5: Solve for x
   x = 10,616,521.61/3,898.98
6. Step 6: Final answer
   x = 2,722.90