Finding the Fourth Proportional to 2,160,190.82, 2,978,830.67 and 1,855,276.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160,190.82 : 2,978,830.67 = 1,855,276.85 : x
2. Step 2: Convert to fraction form
   2,160,190.82/2,978,830.67 = 1,855,276.85/x
3. Step 3: Cross multiply
   2,160,190.82x = 2,978,830.67 × 1,855,276.85
4. Step 4: Simplify right side
   2,160,190.82x = 5,526,555,557,950.45
5. Step 5: Solve for x
   x = 5,526,555,557,950.45/2,160,190.82
6. Step 6: Final answer
   x = 2,558,364.53