Finding the Fourth Proportional to 744,256.10, 1,116,038.55 and 323,315.30

Step by Step Solution

1. Step 1: Write the proportion equation
   744,256.10 : 1,116,038.55 = 323,315.30 : x
2. Step 2: Convert to fraction form
   744,256.10/1,116,038.55 = 323,315.30/x
3. Step 3: Cross multiply
   744,256.10x = 1,116,038.55 × 323,315.30
4. Step 4: Simplify right side
   744,256.10x = 360,832,338,604.82
5. Step 5: Solve for x
   x = 360,832,338,604.82/744,256.10
6. Step 6: Final answer
   x = 484,822.82