Finding the Fourth Proportional to 1,615.34, 2,419.32 and 964.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615.34 : 2,419.32 = 964.74 : x
2. Step 2: Convert to fraction form
   1,615.34/2,419.32 = 964.74/x
3. Step 3: Cross multiply
   1,615.34x = 2,419.32 × 964.74
4. Step 4: Simplify right side
   1,615.34x = 2,334,014.78
5. Step 5: Solve for x
   x = 2,334,014.78/1,615.34
6. Step 6: Final answer
   x = 1,444.91