Finding the Fourth Proportional to 1,119,845.78, 1,545,320.56 and 636,343.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119,845.78 : 1,545,320.56 = 636,343.82 : x
2. Step 2: Convert to fraction form
   1,119,845.78/1,545,320.56 = 636,343.82/x
3. Step 3: Cross multiply
   1,119,845.78x = 1,545,320.56 × 636,343.82
4. Step 4: Simplify right side
   1,119,845.78x = 983,355,188,274.94
5. Step 5: Solve for x
   x = 983,355,188,274.94/1,119,845.78
6. Step 6: Final answer
   x = 878,116.62