Finding the Fourth Proportional to 586,887.76, 879,185.55 and 404,485.93

Step by Step Solution

1. Step 1: Write the proportion equation
   586,887.76 : 879,185.55 = 404,485.93 : x
2. Step 2: Convert to fraction form
   586,887.76/879,185.55 = 404,485.93/x
3. Step 3: Cross multiply
   586,887.76x = 879,185.55 × 404,485.93
4. Step 4: Simplify right side
   586,887.76x = 355,618,184,834.31
5. Step 5: Solve for x
   x = 355,618,184,834.31/586,887.76
6. Step 6: Final answer
   x = 605,939.00