Finding the Fourth Proportional to 1,091.98, 1,506.24 and 760

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091.98 : 1,506.24 = 760 : x
2. Step 2: Convert to fraction form
   1,091.98/1,506.24 = 760/x
3. Step 3: Cross multiply
   1,091.98x = 1,506.24 × 760
4. Step 4: Simplify right side
   1,091.98x = 1,144,742.40
5. Step 5: Solve for x
   x = 1,144,742.40/1,091.98
6. Step 6: Final answer
   x = 1,048.32