Finding the Fourth Proportional to 1,427.22, 1,966.14 and 1,007.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.22 : 1,966.14 = 1,007.10 : x
2. Step 2: Convert to fraction form
   1,427.22/1,966.14 = 1,007.10/x
3. Step 3: Cross multiply
   1,427.22x = 1,966.14 × 1,007.10
4. Step 4: Simplify right side
   1,427.22x = 1,980,099.59
5. Step 5: Solve for x
   x = 1,980,099.59/1,427.22
6. Step 6: Final answer
   x = 1,387.38