Finding the Fourth Proportional to 677,667.77, 1,016,993.27 and 546,136.12

Step by Step Solution

1. Step 1: Write the proportion equation
   677,667.77 : 1,016,993.27 = 546,136.12 : x
2. Step 2: Convert to fraction form
   677,667.77/1,016,993.27 = 546,136.12/x
3. Step 3: Cross multiply
   677,667.77x = 1,016,993.27 × 546,136.12
4. Step 4: Simplify right side
   677,667.77x = 555,416,761,180.49
5. Step 5: Solve for x
   x = 555,416,761,180.49/677,667.77
6. Step 6: Final answer
   x = 819,600.38