Finding the Fourth Proportional to 2,050.82, 3,069.84 and 1,985.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,050.82 : 3,069.84 = 1,985.21 : x
2. Step 2: Convert to fraction form
   2,050.82/3,069.84 = 1,985.21/x
3. Step 3: Cross multiply
   2,050.82x = 3,069.84 × 1,985.21
4. Step 4: Simplify right side
   2,050.82x = 6,094,261.72
5. Step 5: Solve for x
   x = 6,094,261.72/2,050.82
6. Step 6: Final answer
   x = 2,971.63