Finding the Fourth Proportional to 2,689,138, 4,034,495.32 and 867,466.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689,138 : 4,034,495.32 = 867,466.56 : x
2. Step 2: Convert to fraction form
   2,689,138/4,034,495.32 = 867,466.56/x
3. Step 3: Cross multiply
   2,689,138x = 4,034,495.32 × 867,466.56
4. Step 4: Simplify right side
   2,689,138x = 3,499,789,776,576.50
5. Step 5: Solve for x
   x = 3,499,789,776,576.50/2,689,138
6. Step 6: Final answer
   x = 1,301,454.14