Finding the Fourth Proportional to 2,798,216.21, 4,196,854.82 and 776,665.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798,216.21 : 4,196,854.82 = 776,665.53 : x
2. Step 2: Convert to fraction form
   2,798,216.21/4,196,854.82 = 776,665.53/x
3. Step 3: Cross multiply
   2,798,216.21x = 4,196,854.82 × 776,665.53
4. Step 4: Simplify right side
   2,798,216.21x = 3,259,552,475,050.02
5. Step 5: Solve for x
   x = 3,259,552,475,050.02/2,798,216.21
6. Step 6: Final answer
   x = 1,164,867.98