Finding the Fourth Proportional to 1,036.02, 1,428.51 and 773.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.02 : 1,428.51 = 773.58 : x
2. Step 2: Convert to fraction form
   1,036.02/1,428.51 = 773.58/x
3. Step 3: Cross multiply
   1,036.02x = 1,428.51 × 773.58
4. Step 4: Simplify right side
   1,036.02x = 1,105,066.77
5. Step 5: Solve for x
   x = 1,105,066.77/1,036.02
6. Step 6: Final answer
   x = 1,066.65