Finding the Fourth Proportional to 1,402.57, 1,935.39 and 773.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.57 : 1,935.39 = 773.06 : x
2. Step 2: Convert to fraction form
   1,402.57/1,935.39 = 773.06/x
3. Step 3: Cross multiply
   1,402.57x = 1,935.39 × 773.06
4. Step 4: Simplify right side
   1,402.57x = 1,496,176.70
5. Step 5: Solve for x
   x = 1,496,176.70/1,402.57
6. Step 6: Final answer
   x = 1,066.74