Finding the Fourth Proportional to 849,682.56, 1,172,424.72 and 487,039.68

Step by Step Solution

1. Step 1: Write the proportion equation
   849,682.56 : 1,172,424.72 = 487,039.68 : x
2. Step 2: Convert to fraction form
   849,682.56/1,172,424.72 = 487,039.68/x
3. Step 3: Cross multiply
   849,682.56x = 1,172,424.72 × 487,039.68
4. Step 4: Simplify right side
   849,682.56x = 571,017,360,452.89
5. Step 5: Solve for x
   x = 571,017,360,452.89/849,682.56
6. Step 6: Final answer
   x = 672,036.11