Finding the Fourth Proportional to 2,162.06, 3,242.28 and 1,007

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.06 : 3,242.28 = 1,007 : x
2. Step 2: Convert to fraction form
   2,162.06/3,242.28 = 1,007/x
3. Step 3: Cross multiply
   2,162.06x = 3,242.28 × 1,007
4. Step 4: Simplify right side
   2,162.06x = 3,264,975.96
5. Step 5: Solve for x
   x = 3,264,975.96/2,162.06
6. Step 6: Final answer
   x = 1,510.12