Finding the Fourth Proportional to 2,461.88, 3,396.30 and 1,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,461.88 : 3,396.30 = 1,621.50 : x
2. Step 2: Convert to fraction form
   2,461.88/3,396.30 = 1,621.50/x
3. Step 3: Cross multiply
   2,461.88x = 3,396.30 × 1,621.50
4. Step 4: Simplify right side
   2,461.88x = 5,507,100.45
5. Step 5: Solve for x
   x = 5,507,100.45/2,461.88
6. Step 6: Final answer
   x = 2,236.95