Finding the Fourth Proportional to 2,151.34, 2,968.89 and 1,207.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.34 : 2,968.89 = 1,207.35 : x
2. Step 2: Convert to fraction form
   2,151.34/2,968.89 = 1,207.35/x
3. Step 3: Cross multiply
   2,151.34x = 2,968.89 × 1,207.35
4. Step 4: Simplify right side
   2,151.34x = 3,584,489.34
5. Step 5: Solve for x
   x = 3,584,489.34/2,151.34
6. Step 6: Final answer
   x = 1,666.17