Finding the Fourth Proportional to 1,074,298.69, 1,611,105.68 and 354,506.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074,298.69 : 1,611,105.68 = 354,506.24 : x
2. Step 2: Convert to fraction form
   1,074,298.69/1,611,105.68 = 354,506.24/x
3. Step 3: Cross multiply
   1,074,298.69x = 1,611,105.68 × 354,506.24
4. Step 4: Simplify right side
   1,074,298.69x = 571,147,009,690.18
5. Step 5: Solve for x
   x = 571,147,009,690.18/1,074,298.69
6. Step 6: Final answer
   x = 531,646.38