Finding the Fourth Proportional to 1,053,563.60, 1,453,921.61 and 570,128.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053,563.60 : 1,453,921.61 = 570,128.69 : x
2. Step 2: Convert to fraction form
   1,053,563.60/1,453,921.61 = 570,128.69/x
3. Step 3: Cross multiply
   1,053,563.60x = 1,453,921.61 × 570,128.69
4. Step 4: Simplify right side
   1,053,563.60x = 828,922,423,656.15
5. Step 5: Solve for x
   x = 828,922,423,656.15/1,053,563.60
6. Step 6: Final answer
   x = 786,779.67