Finding the Fourth Proportional to 2,139,588.78, 3,209,580.98 and 773,703.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,588.78 : 3,209,580.98 = 773,703.39 : x
2. Step 2: Convert to fraction form
   2,139,588.78/3,209,580.98 = 773,703.39/x
3. Step 3: Cross multiply
   2,139,588.78x = 3,209,580.98 × 773,703.39
4. Step 4: Simplify right side
   2,139,588.78x = 2,483,263,680,837.01
5. Step 5: Solve for x
   x = 2,483,263,680,837.01/2,139,588.78
6. Step 6: Final answer
   x = 1,160,626.61