Finding the Fourth Proportional to 830,004.48, 1,245,395.52 and 409,050.72

Step by Step Solution

1. Step 1: Write the proportion equation
   830,004.48 : 1,245,395.52 = 409,050.72 : x
2. Step 2: Convert to fraction form
   830,004.48/1,245,395.52 = 409,050.72/x
3. Step 3: Cross multiply
   830,004.48x = 1,245,395.52 × 409,050.72
4. Step 4: Simplify right side
   830,004.48x = 509,429,934,140.77
5. Step 5: Solve for x
   x = 509,429,934,140.77/830,004.48
6. Step 6: Final answer
   x = 613,767.69