Finding the Fourth Proportional to 5,256.69, 7,886.52 and 1,558.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,256.69 : 7,886.52 = 1,558.91 : x
2. Step 2: Convert to fraction form
   5,256.69/7,886.52 = 1,558.91/x
3. Step 3: Cross multiply
   5,256.69x = 7,886.52 × 1,558.91
4. Step 4: Simplify right side
   5,256.69x = 12,294,374.89
5. Step 5: Solve for x
   x = 12,294,374.89/5,256.69
6. Step 6: Final answer
   x = 2,338.81