Finding the Fourth Proportional to 1,558,453.50, 2,150,644.86 and 870,135.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558,453.50 : 2,150,644.86 = 870,135.93 : x
2. Step 2: Convert to fraction form
   1,558,453.50/2,150,644.86 = 870,135.93/x
3. Step 3: Cross multiply
   1,558,453.50x = 2,150,644.86 × 870,135.93
4. Step 4: Simplify right side
   1,558,453.50x = 1,871,353,365,355.82
5. Step 5: Solve for x
   x = 1,871,353,365,355.82/1,558,453.50
6. Step 6: Final answer
   x = 1,200,775.88