Finding the Fourth Proportional to 2,213.19, 3,054.42 and 1,328.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.19 : 3,054.42 = 1,328.98 : x
2. Step 2: Convert to fraction form
   2,213.19/3,054.42 = 1,328.98/x
3. Step 3: Cross multiply
   2,213.19x = 3,054.42 × 1,328.98
4. Step 4: Simplify right side
   2,213.19x = 4,059,255.46
5. Step 5: Solve for x
   x = 4,059,255.46/2,213.19
6. Step 6: Final answer
   x = 1,834.12