Finding the Fourth Proportional to 2,579,749.60, 3,869,711.78 and 686,492.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579,749.60 : 3,869,711.78 = 686,492.86 : x
2. Step 2: Convert to fraction form
   2,579,749.60/3,869,711.78 = 686,492.86/x
3. Step 3: Cross multiply
   2,579,749.60x = 3,869,711.78 × 686,492.86
4. Step 4: Simplify right side
   2,579,749.60x = 2,656,529,507,227.89
5. Step 5: Solve for x
   x = 2,656,529,507,227.89/2,579,749.60
6. Step 6: Final answer
   x = 1,029,762.54