Finding the Fourth Proportional to 2,140,064.01, 3,211,146.72 and 860,619.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,064.01 : 3,211,146.72 = 860,619.74 : x
2. Step 2: Convert to fraction form
   2,140,064.01/3,211,146.72 = 860,619.74/x
3. Step 3: Cross multiply
   2,140,064.01x = 3,211,146.72 × 860,619.74
4. Step 4: Simplify right side
   2,140,064.01x = 2,763,576,239,212.52
5. Step 5: Solve for x
   x = 2,763,576,239,212.52/2,140,064.01
6. Step 6: Final answer
   x = 1,291,352.14