Finding the Fourth Proportional to 830,222.16, 1,145,792.88 and 508,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   830,222.16 : 1,145,792.88 = 508,146.72 : x
2. Step 2: Convert to fraction form
   830,222.16/1,145,792.88 = 508,146.72/x
3. Step 3: Cross multiply
   830,222.16x = 1,145,792.88 × 508,146.72
4. Step 4: Simplify right side
   830,222.16x = 582,230,893,771.35
5. Step 5: Solve for x
   x = 582,230,893,771.35/830,222.16
6. Step 6: Final answer
   x = 701,295.29