Finding the Fourth Proportional to 1,777.37, 2,666.72 and 804.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,777.37 : 2,666.72 = 804.15 : x
2. Step 2: Convert to fraction form
   1,777.37/2,666.72 = 804.15/x
3. Step 3: Cross multiply
   1,777.37x = 2,666.72 × 804.15
4. Step 4: Simplify right side
   1,777.37x = 2,144,444.90
5. Step 5: Solve for x
   x = 2,144,444.90/1,777.37
6. Step 6: Final answer
   x = 1,206.53