Finding the Fourth Proportional to 2,288,538.50, 3,158,223.21 and 1,256,142.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288,538.50 : 3,158,223.21 = 1,256,142.87 : x
2. Step 2: Convert to fraction form
   2,288,538.50/3,158,223.21 = 1,256,142.87/x
3. Step 3: Cross multiply
   2,288,538.50x = 3,158,223.21 × 1,256,142.87
4. Step 4: Simplify right side
   2,288,538.50x = 3,967,179,567,110.01
5. Step 5: Solve for x
   x = 3,967,179,567,110.01/2,288,538.50
6. Step 6: Final answer
   x = 1,733,499.16