Finding the Fourth Proportional to 1,579,477.18, 2,179,678.10 and 891,142.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,579,477.18 : 2,179,678.10 = 891,142.84 : x
2. Step 2: Convert to fraction form
   1,579,477.18/2,179,678.10 = 891,142.84/x
3. Step 3: Cross multiply
   1,579,477.18x = 2,179,678.10 × 891,142.84
4. Step 4: Simplify right side
   1,579,477.18x = 1,942,404,522,414.89
5. Step 5: Solve for x
   x = 1,942,404,522,414.89/1,579,477.18
6. Step 6: Final answer
   x = 1,229,776.88