Finding the Fourth Proportional to 2,754,638.46, 4,131,802.17 and 861,156.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,754,638.46 : 4,131,802.17 = 861,156.54 : x
2. Step 2: Convert to fraction form
   2,754,638.46/4,131,802.17 = 861,156.54/x
3. Step 3: Cross multiply
   2,754,638.46x = 4,131,802.17 × 861,156.54
4. Step 4: Simplify right side
   2,754,638.46x = 3,558,128,460,681.69
5. Step 5: Solve for x
   x = 3,558,128,460,681.69/2,754,638.46
6. Step 6: Final answer
   x = 1,291,686.19