Finding the Fourth Proportional to 805,499.86, 1,111,313.10 and 499,466.02

Step by Step Solution

1. Step 1: Write the proportion equation
   805,499.86 : 1,111,313.10 = 499,466.02 : x
2. Step 2: Convert to fraction form
   805,499.86/1,111,313.10 = 499,466.02/x
3. Step 3: Cross multiply
   805,499.86x = 1,111,313.10 × 499,466.02
4. Step 4: Simplify right side
   805,499.86x = 555,063,131,030.86
5. Step 5: Solve for x
   x = 555,063,131,030.86/805,499.86
6. Step 6: Final answer
   x = 689,091.53