Finding the Fourth Proportional to 2,521.42, 3,779.32 and 1,903.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.42 : 3,779.32 = 1,903.12 : x
2. Step 2: Convert to fraction form
   2,521.42/3,779.32 = 1,903.12/x
3. Step 3: Cross multiply
   2,521.42x = 3,779.32 × 1,903.12
4. Step 4: Simplify right side
   2,521.42x = 7,192,480.58
5. Step 5: Solve for x
   x = 7,192,480.58/2,521.42
6. Step 6: Final answer
   x = 2,852.56