Finding the Fourth Proportional to 2,263.12, 3,123.30 and 1,379.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,263.12 : 3,123.30 = 1,379.08 : x
2. Step 2: Convert to fraction form
   2,263.12/3,123.30 = 1,379.08/x
3. Step 3: Cross multiply
   2,263.12x = 3,123.30 × 1,379.08
4. Step 4: Simplify right side
   2,263.12x = 4,307,280.56
5. Step 5: Solve for x
   x = 4,307,280.56/2,263.12
6. Step 6: Final answer
   x = 1,903.25