Finding the Fourth Proportional to 3,977.32, 5,966.59 and 1,308.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,977.32 : 5,966.59 = 1,308.07 : x
2. Step 2: Convert to fraction form
   3,977.32/5,966.59 = 1,308.07/x
3. Step 3: Cross multiply
   3,977.32x = 5,966.59 × 1,308.07
4. Step 4: Simplify right side
   3,977.32x = 7,804,717.38
5. Step 5: Solve for x
   x = 7,804,717.38/3,977.32
6. Step 6: Final answer
   x = 1,962.31