Finding the Fourth Proportional to 1,123,768.20, 1,685,300.94 and 375,639.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,768.20 : 1,685,300.94 = 375,639.24 : x
2. Step 2: Convert to fraction form
   1,123,768.20/1,685,300.94 = 375,639.24/x
3. Step 3: Cross multiply
   1,123,768.20x = 1,685,300.94 × 375,639.24
4. Step 4: Simplify right side
   1,123,768.20x = 633,065,164,272.89
5. Step 5: Solve for x
   x = 633,065,164,272.89/1,123,768.20
6. Step 6: Final answer
   x = 563,341.41