Finding the Fourth Proportional to 861,314, 1,291,982.52 and 270,338

Step by Step Solution

1. Step 1: Write the proportion equation
   861,314 : 1,291,982.52 = 270,338 : x
2. Step 2: Convert to fraction form
   861,314/1,291,982.52 = 270,338/x
3. Step 3: Cross multiply
   861,314x = 1,291,982.52 × 270,338
4. Step 4: Simplify right side
   861,314x = 349,271,970,491.76
5. Step 5: Solve for x
   x = 349,271,970,491.76/861,314
6. Step 6: Final answer
   x = 405,510.62