Finding the Fourth Proportional to 1,270.17, 1,753.02 and 773.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,270.17 : 1,753.02 = 773.10 : x
2. Step 2: Convert to fraction form
   1,270.17/1,753.02 = 773.10/x
3. Step 3: Cross multiply
   1,270.17x = 1,753.02 × 773.10
4. Step 4: Simplify right side
   1,270.17x = 1,355,259.76
5. Step 5: Solve for x
   x = 1,355,259.76/1,270.17
6. Step 6: Final answer
   x = 1,066.99