Finding the Fourth Proportional to 1,666.38, 2,498.18 and 971.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666.38 : 2,498.18 = 971.32 : x
2. Step 2: Convert to fraction form
   1,666.38/2,498.18 = 971.32/x
3. Step 3: Cross multiply
   1,666.38x = 2,498.18 × 971.32
4. Step 4: Simplify right side
   1,666.38x = 2,426,532.20
5. Step 5: Solve for x
   x = 2,426,532.20/1,666.38
6. Step 6: Final answer
   x = 1,456.17