Finding the Fourth Proportional to 2,505.08, 3,457.90 and 1,621.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.08 : 3,457.90 = 1,621.56 : x
2. Step 2: Convert to fraction form
   2,505.08/3,457.90 = 1,621.56/x
3. Step 3: Cross multiply
   2,505.08x = 3,457.90 × 1,621.56
4. Step 4: Simplify right side
   2,505.08x = 5,607,192.32
5. Step 5: Solve for x
   x = 5,607,192.32/2,505.08
6. Step 6: Final answer
   x = 2,238.33