Finding the Fourth Proportional to 2,141,014.91, 3,210,722.00 and 861,189.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141,014.91 : 3,210,722.00 = 861,189.90 : x
2. Step 2: Convert to fraction form
   2,141,014.91/3,210,722.00 = 861,189.90/x
3. Step 3: Cross multiply
   2,141,014.91x = 3,210,722.00 × 861,189.90
4. Step 4: Simplify right side
   2,141,014.91x = 2,765,041,353,801.85
5. Step 5: Solve for x
   x = 2,765,041,353,801.85/2,141,014.91
6. Step 6: Final answer
   x = 1,291,462.91