Finding the Fourth Proportional to 1,777.81, 2,667.05 and 803.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,777.81 : 2,667.05 = 803.91 : x
2. Step 2: Convert to fraction form
   1,777.81/2,667.05 = 803.91/x
3. Step 3: Cross multiply
   1,777.81x = 2,667.05 × 803.91
4. Step 4: Simplify right side
   1,777.81x = 2,144,070.18
5. Step 5: Solve for x
   x = 2,144,070.18/1,777.81
6. Step 6: Final answer
   x = 1,206.02