Finding the Fourth Proportional to 1,550,859.48, 2,139,869.72 and 906,154.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550,859.48 : 2,139,869.72 = 906,154.98 : x
2. Step 2: Convert to fraction form
   1,550,859.48/2,139,869.72 = 906,154.98/x
3. Step 3: Cross multiply
   1,550,859.48x = 2,139,869.72 × 906,154.98
4. Step 4: Simplify right side
   1,550,859.48x = 1,939,053,603,329.21
5. Step 5: Solve for x
   x = 1,939,053,603,329.21/1,550,859.48
6. Step 6: Final answer
   x = 1,250,309.02