Finding the Fourth Proportional to 1,641,134.69, 2,264,880 and 916,123.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641,134.69 : 2,264,880 = 916,123.94 : x
2. Step 2: Convert to fraction form
   1,641,134.69/2,264,880 = 916,123.94/x
3. Step 3: Cross multiply
   1,641,134.69x = 2,264,880 × 916,123.94
4. Step 4: Simplify right side
   1,641,134.69x = 2,074,910,789,227.20
5. Step 5: Solve for x
   x = 2,074,910,789,227.20/1,641,134.69
6. Step 6: Final answer
   x = 1,264,314.75