Finding the Fourth Proportional to 1,421.34, 2,132.82 and 971.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.34 : 2,132.82 = 971.52 : x
2. Step 2: Convert to fraction form
   1,421.34/2,132.82 = 971.52/x
3. Step 3: Cross multiply
   1,421.34x = 2,132.82 × 971.52
4. Step 4: Simplify right side
   1,421.34x = 2,072,077.29
5. Step 5: Solve for x
   x = 2,072,077.29/1,421.34
6. Step 6: Final answer
   x = 1,457.83