Finding the Fourth Proportional to 1,144,174.82, 1,578,856.82 and 678,948.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144,174.82 : 1,578,856.82 = 678,948.51 : x
2. Step 2: Convert to fraction form
   1,144,174.82/1,578,856.82 = 678,948.51/x
3. Step 3: Cross multiply
   1,144,174.82x = 1,578,856.82 × 678,948.51
4. Step 4: Simplify right side
   1,144,174.82x = 1,071,962,480,996.78
5. Step 5: Solve for x
   x = 1,071,962,480,996.78/1,144,174.82
6. Step 6: Final answer
   x = 936,886.97