Finding the Fourth Proportional to 2,117.77, 2,916.00 and 1,881.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.77 : 2,916.00 = 1,881.31 : x
2. Step 2: Convert to fraction form
   2,117.77/2,916.00 = 1,881.31/x
3. Step 3: Cross multiply
   2,117.77x = 2,916.00 × 1,881.31
4. Step 4: Simplify right side
   2,117.77x = 5,485,903.37
5. Step 5: Solve for x
   x = 5,485,903.37/2,117.77
6. Step 6: Final answer
   x = 2,590.41