Finding the Fourth Proportional to 2,123,756.44, 3,185,541.96 and 684,407.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123,756.44 : 3,185,541.96 = 684,407.86 : x
2. Step 2: Convert to fraction form
   2,123,756.44/3,185,541.96 = 684,407.86/x
3. Step 3: Cross multiply
   2,123,756.44x = 3,185,541.96 × 684,407.86
4. Step 4: Simplify right side
   2,123,756.44x = 2,180,209,955,783.81
5. Step 5: Solve for x
   x = 2,180,209,955,783.81/2,123,756.44
6. Step 6: Final answer
   x = 1,026,581.92