Finding the Fourth Proportional to 2,051,406.90, 3,077,679.15 and 853,893.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051,406.90 : 3,077,679.15 = 853,893.30 : x
2. Step 2: Convert to fraction form
   2,051,406.90/3,077,679.15 = 853,893.30/x
3. Step 3: Cross multiply
   2,051,406.90x = 3,077,679.15 × 853,893.30
4. Step 4: Simplify right side
   2,051,406.90x = 2,628,009,605,734.69
5. Step 5: Solve for x
   x = 2,628,009,605,734.69/2,051,406.90
6. Step 6: Final answer
   x = 1,281,076.71