Finding the Fourth Proportional to 1,618.91, 2,410.94 and 1,564.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.91 : 2,410.94 = 1,564.23 : x
2. Step 2: Convert to fraction form
   1,618.91/2,410.94 = 1,564.23/x
3. Step 3: Cross multiply
   1,618.91x = 2,410.94 × 1,564.23
4. Step 4: Simplify right side
   1,618.91x = 3,771,256.86
5. Step 5: Solve for x
   x = 3,771,256.86/1,618.91
6. Step 6: Final answer
   x = 2,329.51