Finding the Fourth Proportional to 1,402.01, 1,934.79 and 772.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.01 : 1,934.79 = 772.56 : x
2. Step 2: Convert to fraction form
   1,402.01/1,934.79 = 772.56/x
3. Step 3: Cross multiply
   1,402.01x = 1,934.79 × 772.56
4. Step 4: Simplify right side
   1,402.01x = 1,494,741.36
5. Step 5: Solve for x
   x = 1,494,741.36/1,402.01
6. Step 6: Final answer
   x = 1,066.14