Finding the Fourth Proportional to 1,029,112.52, 1,420,173.86 and 570,256.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,029,112.52 : 1,420,173.86 = 570,256.79 : x
2. Step 2: Convert to fraction form
   1,029,112.52/1,420,173.86 = 570,256.79/x
3. Step 3: Cross multiply
   1,029,112.52x = 1,420,173.86 × 570,256.79
4. Step 4: Simplify right side
   1,029,112.52x = 809,863,791,621.59
5. Step 5: Solve for x
   x = 809,863,791,621.59/1,029,112.52
6. Step 6: Final answer
   x = 786,953.59