Finding the Fourth Proportional to 1,397,488.55, 1,928,603.52 and 853,536.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,488.55 : 1,928,603.52 = 853,536.29 : x
2. Step 2: Convert to fraction form
   1,397,488.55/1,928,603.52 = 853,536.29/x
3. Step 3: Cross multiply
   1,397,488.55x = 1,928,603.52 × 853,536.29
4. Step 4: Simplify right side
   1,397,488.55x = 1,646,133,083,698.72
5. Step 5: Solve for x
   x = 1,646,133,083,698.72/1,397,488.55
6. Step 6: Final answer
   x = 1,177,922.42