Finding the Fourth Proportional to 1,223,345.82, 1,687,536.72 and 1,136,747.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,345.82 : 1,687,536.72 = 1,136,747.90 : x
2. Step 2: Convert to fraction form
   1,223,345.82/1,687,536.72 = 1,136,747.90/x
3. Step 3: Cross multiply
   1,223,345.82x = 1,687,536.72 × 1,136,747.90
4. Step 4: Simplify right side
   1,223,345.82x = 1,918,303,822,632.89
5. Step 5: Solve for x
   x = 1,918,303,822,632.89/1,223,345.82
6. Step 6: Final answer
   x = 1,568,079.76