Finding the Fourth Proportional to 1,091.69, 1,506.04 and 693.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091.69 : 1,506.04 = 693.88 : x
2. Step 2: Convert to fraction form
   1,091.69/1,506.04 = 693.88/x
3. Step 3: Cross multiply
   1,091.69x = 1,506.04 × 693.88
4. Step 4: Simplify right side
   1,091.69x = 1,045,011.04
5. Step 5: Solve for x
   x = 1,045,011.04/1,091.69
6. Step 6: Final answer
   x = 957.24