Finding the Fourth Proportional to 1,400.56, 1,932.72 and 779.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.56 : 1,932.72 = 779.52 : x
2. Step 2: Convert to fraction form
   1,400.56/1,932.72 = 779.52/x
3. Step 3: Cross multiply
   1,400.56x = 1,932.72 × 779.52
4. Step 4: Simplify right side
   1,400.56x = 1,506,593.89
5. Step 5: Solve for x
   x = 1,506,593.89/1,400.56
6. Step 6: Final answer
   x = 1,075.71