Finding the Fourth Proportional to 1,172,928.72, 1,759,538 and 414,613.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172,928.72 : 1,759,538 = 414,613.84 : x
2. Step 2: Convert to fraction form
   1,172,928.72/1,759,538 = 414,613.84/x
3. Step 3: Cross multiply
   1,172,928.72x = 1,759,538 × 414,613.84
4. Step 4: Simplify right side
   1,172,928.72x = 729,528,806,805.92
5. Step 5: Solve for x
   x = 729,528,806,805.92/1,172,928.72
6. Step 6: Final answer
   x = 621,971.99