Finding the Fourth Proportional to 1,365,180.78, 2,047,096.89 and 418,323.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365,180.78 : 2,047,096.89 = 418,323.18 : x
2. Step 2: Convert to fraction form
   1,365,180.78/2,047,096.89 = 418,323.18/x
3. Step 3: Cross multiply
   1,365,180.78x = 2,047,096.89 × 418,323.18
4. Step 4: Simplify right side
   1,365,180.78x = 856,348,080,792.91
5. Step 5: Solve for x
   x = 856,348,080,792.91/1,365,180.78
6. Step 6: Final answer
   x = 627,278.15