Finding the Fourth Proportional to 1,243,010.27, 1,864,795.94 and 378,522.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,010.27 : 1,864,795.94 = 378,522.52 : x
2. Step 2: Convert to fraction form
   1,243,010.27/1,864,795.94 = 378,522.52/x
3. Step 3: Cross multiply
   1,243,010.27x = 1,864,795.94 × 378,522.52
4. Step 4: Simplify right side
   1,243,010.27x = 705,867,253,359.43
5. Step 5: Solve for x
   x = 705,867,253,359.43/1,243,010.27
6. Step 6: Final answer
   x = 567,869.20