Finding the Fourth Proportional to 2,603.58, 3,905.34 and 1,043.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.58 : 3,905.34 = 1,043.98 : x
2. Step 2: Convert to fraction form
   2,603.58/3,905.34 = 1,043.98/x
3. Step 3: Cross multiply
   2,603.58x = 3,905.34 × 1,043.98
4. Step 4: Simplify right side
   2,603.58x = 4,077,096.85
5. Step 5: Solve for x
   x = 4,077,096.85/2,603.58
6. Step 6: Final answer
   x = 1,565.96