Finding the Fourth Proportional to 2,603.76, 3,592.05 and 1,555.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.76 : 3,592.05 = 1,555.83 : x
2. Step 2: Convert to fraction form
   2,603.76/3,592.05 = 1,555.83/x
3. Step 3: Cross multiply
   2,603.76x = 3,592.05 × 1,555.83
4. Step 4: Simplify right side
   2,603.76x = 5,588,619.15
5. Step 5: Solve for x
   x = 5,588,619.15/2,603.76
6. Step 6: Final answer
   x = 2,146.36