Finding the Fourth Proportional to 1,088.66, 1,501.54 and 769.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,088.66 : 1,501.54 = 769.51 : x
2. Step 2: Convert to fraction form
   1,088.66/1,501.54 = 769.51/x
3. Step 3: Cross multiply
   1,088.66x = 1,501.54 × 769.51
4. Step 4: Simplify right side
   1,088.66x = 1,155,441.55
5. Step 5: Solve for x
   x = 1,155,441.55/1,088.66
6. Step 6: Final answer
   x = 1,061.34