Finding the Fourth Proportional to 2,576,579.91, 3,557,060.71 and 1,986,590.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576,579.91 : 3,557,060.71 = 1,986,590.76 : x
2. Step 2: Convert to fraction form
   2,576,579.91/3,557,060.71 = 1,986,590.76/x
3. Step 3: Cross multiply
   2,576,579.91x = 3,557,060.71 × 1,986,590.76
4. Step 4: Simplify right side
   2,576,579.91x = 7,066,423,939,245.04
5. Step 5: Solve for x
   x = 7,066,423,939,245.04/2,576,579.91
6. Step 6: Final answer
   x = 2,742,559.59