Finding the Fourth Proportional to 1,419.08, 1,960.09 and 1,091.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.08 : 1,960.09 = 1,091.48 : x
2. Step 2: Convert to fraction form
   1,419.08/1,960.09 = 1,091.48/x
3. Step 3: Cross multiply
   1,419.08x = 1,960.09 × 1,091.48
4. Step 4: Simplify right side
   1,419.08x = 2,139,386.50
5. Step 5: Solve for x
   x = 2,139,386.50/1,419.08
6. Step 6: Final answer
   x = 1,507.59