Finding the Fourth Proportional to 849,479.54, 1,172,111.84 and 487,017.10

Step by Step Solution

1. Step 1: Write the proportion equation
   849,479.54 : 1,172,111.84 = 487,017.10 : x
2. Step 2: Convert to fraction form
   849,479.54/1,172,111.84 = 487,017.10/x
3. Step 3: Cross multiply
   849,479.54x = 1,172,111.84 × 487,017.10
4. Step 4: Simplify right side
   849,479.54x = 570,838,503,827.10
5. Step 5: Solve for x
   x = 570,838,503,827.10/849,479.54
6. Step 6: Final answer
   x = 671,986.17