Finding the Fourth Proportional to 2,100,856.42, 3,151,396.38 and 661,652.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,856.42 : 3,151,396.38 = 661,652.38 : x
2. Step 2: Convert to fraction form
   2,100,856.42/3,151,396.38 = 661,652.38/x
3. Step 3: Cross multiply
   2,100,856.42x = 3,151,396.38 × 661,652.38
4. Step 4: Simplify right side
   2,100,856.42x = 2,085,128,915,150.38
5. Step 5: Solve for x
   x = 2,085,128,915,150.38/2,100,856.42
6. Step 6: Final answer
   x = 992,513.77