Finding the Fourth Proportional to 2,128,009.96, 3,193,189.98 and 866,725.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,009.96 : 3,193,189.98 = 866,725.48 : x
2. Step 2: Convert to fraction form
   2,128,009.96/3,193,189.98 = 866,725.48/x
3. Step 3: Cross multiply
   2,128,009.96x = 3,193,189.98 × 866,725.48
4. Step 4: Simplify right side
   2,128,009.96x = 2,767,619,118,146.69
5. Step 5: Solve for x
   x = 2,767,619,118,146.69/2,128,009.96
6. Step 6: Final answer
   x = 1,300,566.81