Finding the Fourth Proportional to 2,521.86, 3,779.98 and 1,903.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.86 : 3,779.98 = 1,903.56 : x
2. Step 2: Convert to fraction form
   2,521.86/3,779.98 = 1,903.56/x
3. Step 3: Cross multiply
   2,521.86x = 3,779.98 × 1,903.56
4. Step 4: Simplify right side
   2,521.86x = 7,195,390.31
5. Step 5: Solve for x
   x = 7,195,390.31/2,521.86
6. Step 6: Final answer
   x = 2,853.21