Finding the Fourth Proportional to 1,010,096.72, 1,514,751.32 and 378,666

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,096.72 : 1,514,751.32 = 378,666 : x
2. Step 2: Convert to fraction form
   1,010,096.72/1,514,751.32 = 378,666/x
3. Step 3: Cross multiply
   1,010,096.72x = 1,514,751.32 × 378,666
4. Step 4: Simplify right side
   1,010,096.72x = 573,584,823,339.12
5. Step 5: Solve for x
   x = 573,584,823,339.12/1,010,096.72
6. Step 6: Final answer
   x = 567,851.39