Finding the Fourth Proportional to 3,870,513.98, 5,341,446.35 and 2,128,315.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870,513.98 : 5,341,446.35 = 2,128,315.96 : x
2. Step 2: Convert to fraction form
   3,870,513.98/5,341,446.35 = 2,128,315.96/x
3. Step 3: Cross multiply
   3,870,513.98x = 5,341,446.35 × 2,128,315.96
4. Step 4: Simplify right side
   3,870,513.98x = 11,368,285,516,188.74
5. Step 5: Solve for x
   x = 11,368,285,516,188.74/3,870,513.98
6. Step 6: Final answer
   x = 2,937,151.39