Finding the Fourth Proportional to 2,263.30, 3,123.57 and 1,379.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,263.30 : 3,123.57 = 1,379.32 : x
2. Step 2: Convert to fraction form
   2,263.30/3,123.57 = 1,379.32/x
3. Step 3: Cross multiply
   2,263.30x = 3,123.57 × 1,379.32
4. Step 4: Simplify right side
   2,263.30x = 4,308,402.57
5. Step 5: Solve for x
   x = 4,308,402.57/2,263.30
6. Step 6: Final answer
   x = 1,903.59