Finding the Fourth Proportional to 1,881, 2,822.31 and 1,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,881 : 2,822.31 = 1,111.50 : x
2. Step 2: Convert to fraction form
   1,881/2,822.31 = 1,111.50/x
3. Step 3: Cross multiply
   1,881x = 2,822.31 × 1,111.50
4. Step 4: Simplify right side
   1,881x = 3,136,997.57
5. Step 5: Solve for x
   x = 3,136,997.57/1,881
6. Step 6: Final answer
   x = 1,667.73