Finding the Fourth Proportional to 2,603,907.28, 3,905,666.52 and 806,804.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603,907.28 : 3,905,666.52 = 806,804.56 : x
2. Step 2: Convert to fraction form
   2,603,907.28/3,905,666.52 = 806,804.56/x
3. Step 3: Cross multiply
   2,603,907.28x = 3,905,666.52 × 806,804.56
4. Step 4: Simplify right side
   2,603,907.28x = 3,151,109,558,175.33
5. Step 5: Solve for x
   x = 3,151,109,558,175.33/2,603,907.28
6. Step 6: Final answer
   x = 1,210,146.61