Finding the Fourth Proportional to 1,664.22, 2,495.52 and 971.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664.22 : 2,495.52 = 971.10 : x
2. Step 2: Convert to fraction form
   1,664.22/2,495.52 = 971.10/x
3. Step 3: Cross multiply
   1,664.22x = 2,495.52 × 971.10
4. Step 4: Simplify right side
   1,664.22x = 2,423,399.47
5. Step 5: Solve for x
   x = 2,423,399.47/1,664.22
6. Step 6: Final answer
   x = 1,456.18