Finding the Fourth Proportional to 1,021,061.16, 1,531,820.14 and 311,144.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,021,061.16 : 1,531,820.14 = 311,144.76 : x
2. Step 2: Convert to fraction form
   1,021,061.16/1,531,820.14 = 311,144.76/x
3. Step 3: Cross multiply
   1,021,061.16x = 1,531,820.14 × 311,144.76
4. Step 4: Simplify right side
   1,021,061.16x = 476,617,809,823.47
5. Step 5: Solve for x
   x = 476,617,809,823.47/1,021,061.16
6. Step 6: Final answer
   x = 466,786.74