Finding the Fourth Proportional to 695,860.98, 1,042,019.16 and 458,484.18

Step by Step Solution

1. Step 1: Write the proportion equation
   695,860.98 : 1,042,019.16 = 458,484.18 : x
2. Step 2: Convert to fraction form
   695,860.98/1,042,019.16 = 458,484.18/x
3. Step 3: Cross multiply
   695,860.98x = 1,042,019.16 × 458,484.18
4. Step 4: Simplify right side
   695,860.98x = 477,749,300,116.89
5. Step 5: Solve for x
   x = 477,749,300,116.89/695,860.98
6. Step 6: Final answer
   x = 686,558.54