Finding the Fourth Proportional to 2,576,602.43, 3,557,091.81 and 1,986,613.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576,602.43 : 3,557,091.81 = 1,986,613.21 : x
2. Step 2: Convert to fraction form
   2,576,602.43/3,557,091.81 = 1,986,613.21/x
3. Step 3: Cross multiply
   2,576,602.43x = 3,557,091.81 × 1,986,613.21
4. Step 4: Simplify right side
   2,576,602.43x = 7,066,565,578,928.81
5. Step 5: Solve for x
   x = 7,066,565,578,928.81/2,576,602.43
6. Step 6: Final answer
   x = 2,742,590.59