Finding the Fourth Proportional to 2,051,871.76, 3,091,813.18 and 1,686,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051,871.76 : 3,091,813.18 = 1,686,088.72 : x
2. Step 2: Convert to fraction form
   2,051,871.76/3,091,813.18 = 1,686,088.72/x
3. Step 3: Cross multiply
   2,051,871.76x = 3,091,813.18 × 1,686,088.72
4. Step 4: Simplify right side
   2,051,871.76x = 5,213,071,327,145.33
5. Step 5: Solve for x
   x = 5,213,071,327,145.33/2,051,871.76
6. Step 6: Final answer
   x = 2,540,641.88