Finding the Fourth Proportional to 879,090, 1,213,144.83 and 476,682

Step by Step Solution

1. Step 1: Write the proportion equation
   879,090 : 1,213,144.83 = 476,682 : x
2. Step 2: Convert to fraction form
   879,090/1,213,144.83 = 476,682/x
3. Step 3: Cross multiply
   879,090x = 1,213,144.83 × 476,682
4. Step 4: Simplify right side
   879,090x = 578,284,303,854.06
5. Step 5: Solve for x
   x = 578,284,303,854.06/879,090
6. Step 6: Final answer
   x = 657,821.50