Finding the Fourth Proportional to 1,369,339.51, 2,054,196.17 and 570,434.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369,339.51 : 2,054,196.17 = 570,434.18 : x
2. Step 2: Convert to fraction form
   1,369,339.51/2,054,196.17 = 570,434.18/x
3. Step 3: Cross multiply
   1,369,339.51x = 2,054,196.17 × 570,434.18
4. Step 4: Simplify right side
   1,369,339.51x = 1,171,783,707,793.09
5. Step 5: Solve for x
   x = 1,171,783,707,793.09/1,369,339.51
6. Step 6: Final answer
   x = 855,729.13