Finding the Fourth Proportional to 1,670.71, 2,305.32 and 962.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,670.71 : 2,305.32 = 962.59 : x
2. Step 2: Convert to fraction form
   1,670.71/2,305.32 = 962.59/x
3. Step 3: Cross multiply
   1,670.71x = 2,305.32 × 962.59
4. Step 4: Simplify right side
   1,670.71x = 2,219,066.45
5. Step 5: Solve for x
   x = 2,219,066.45/1,670.71
6. Step 6: Final answer
   x = 1,328.22