Finding the Fourth Proportional to 2,051.21, 3,077.82 and 1,271.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.21 : 3,077.82 = 1,271.00 : x
2. Step 2: Convert to fraction form
   2,051.21/3,077.82 = 1,271.00/x
3. Step 3: Cross multiply
   2,051.21x = 3,077.82 × 1,271.00
4. Step 4: Simplify right side
   2,051.21x = 3,911,893.83
5. Step 5: Solve for x
   x = 3,911,893.83/2,051.21
6. Step 6: Final answer
   x = 1,907.12