Finding the Fourth Proportional to 1,424.16, 1,966.24 and 1,091.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424.16 : 1,966.24 = 1,091.95 : x
2. Step 2: Convert to fraction form
   1,424.16/1,966.24 = 1,091.95/x
3. Step 3: Cross multiply
   1,424.16x = 1,966.24 × 1,091.95
4. Step 4: Simplify right side
   1,424.16x = 2,147,035.50
5. Step 5: Solve for x
   x = 2,147,035.50/1,424.16
6. Step 6: Final answer
   x = 1,507.58