Finding the Fourth Proportional to 1,776.32, 2,665.83 and 803.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.32 : 2,665.83 = 803.10 : x
2. Step 2: Convert to fraction form
   1,776.32/2,665.83 = 803.10/x
3. Step 3: Cross multiply
   1,776.32x = 2,665.83 × 803.10
4. Step 4: Simplify right side
   1,776.32x = 2,140,928.07
5. Step 5: Solve for x
   x = 2,140,928.07/1,776.32
6. Step 6: Final answer
   x = 1,205.26