Finding the Fourth Proportional to 2,111.62, 2,913.90 and 1,261.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.62 : 2,913.90 = 1,261.82 : x
2. Step 2: Convert to fraction form
   2,111.62/2,913.90 = 1,261.82/x
3. Step 3: Cross multiply
   2,111.62x = 2,913.90 × 1,261.82
4. Step 4: Simplify right side
   2,111.62x = 3,676,817.30
5. Step 5: Solve for x
   x = 3,676,817.30/2,111.62
6. Step 6: Final answer
   x = 1,741.23