Finding the Fourth Proportional to 1,401.02, 1,933.32 and 771.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.02 : 1,933.32 = 771.56 : x
2. Step 2: Convert to fraction form
   1,401.02/1,933.32 = 771.56/x
3. Step 3: Cross multiply
   1,401.02x = 1,933.32 × 771.56
4. Step 4: Simplify right side
   1,401.02x = 1,491,672.38
5. Step 5: Solve for x
   x = 1,491,672.38/1,401.02
6. Step 6: Final answer
   x = 1,064.70