Finding the Fourth Proportional to 1,152,837.39, 1,729,319.16 and 478,986.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,837.39 : 1,729,319.16 = 478,986.83 : x
2. Step 2: Convert to fraction form
   1,152,837.39/1,729,319.16 = 478,986.83/x
3. Step 3: Cross multiply
   1,152,837.39x = 1,729,319.16 × 478,986.83
4. Step 4: Simplify right side
   1,152,837.39x = 828,321,099,446.91
5. Step 5: Solve for x
   x = 828,321,099,446.91/1,152,837.39
6. Step 6: Final answer
   x = 718,506.45