Finding the Fourth Proportional to 851,804.10, 1,276,443.91 and 345,749.31

Step by Step Solution

1. Step 1: Write the proportion equation
   851,804.10 : 1,276,443.91 = 345,749.31 : x
2. Step 2: Convert to fraction form
   851,804.10/1,276,443.91 = 345,749.31/x
3. Step 3: Cross multiply
   851,804.10x = 1,276,443.91 × 345,749.31
4. Step 4: Simplify right side
   851,804.10x = 441,329,600,271.83
5. Step 5: Solve for x
   x = 441,329,600,271.83/851,804.10
6. Step 6: Final answer
   x = 518,111.62