Finding the Fourth Proportional to 2,817.83, 3,888.54 and 1,558.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,817.83 : 3,888.54 = 1,558.86 : x
2. Step 2: Convert to fraction form
   2,817.83/3,888.54 = 1,558.86/x
3. Step 3: Cross multiply
   2,817.83x = 3,888.54 × 1,558.86
4. Step 4: Simplify right side
   2,817.83x = 6,061,662.23
5. Step 5: Solve for x
   x = 6,061,662.23/2,817.83
6. Step 6: Final answer
   x = 2,151.18