Finding the Fourth Proportional to 1,977.69, 2,960.09 and 1,457.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,977.69 : 2,960.09 = 1,457.48 : x
2. Step 2: Convert to fraction form
   1,977.69/2,960.09 = 1,457.48/x
3. Step 3: Cross multiply
   1,977.69x = 2,960.09 × 1,457.48
4. Step 4: Simplify right side
   1,977.69x = 4,314,249.89
5. Step 5: Solve for x
   x = 4,314,249.89/1,977.69
6. Step 6: Final answer
   x = 2,181.46