Finding the Fourth Proportional to 849,300.90, 1,172,067.58 and 486,794.72

Step by Step Solution

1. Step 1: Write the proportion equation
   849,300.90 : 1,172,067.58 = 486,794.72 : x
2. Step 2: Convert to fraction form
   849,300.90/1,172,067.58 = 486,794.72/x
3. Step 3: Cross multiply
   849,300.90x = 1,172,067.58 × 486,794.72
4. Step 4: Simplify right side
   849,300.90x = 570,556,309,427.18
5. Step 5: Solve for x
   x = 570,556,309,427.18/849,300.90
6. Step 6: Final answer
   x = 671,795.25