Finding the Fourth Proportional to 1,370.16, 1,888.92 and 1,091.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,370.16 : 1,888.92 = 1,091.34 : x
2. Step 2: Convert to fraction form
   1,370.16/1,888.92 = 1,091.34/x
3. Step 3: Cross multiply
   1,370.16x = 1,888.92 × 1,091.34
4. Step 4: Simplify right side
   1,370.16x = 2,061,453.95
5. Step 5: Solve for x
   x = 2,061,453.95/1,370.16
6. Step 6: Final answer
   x = 1,504.54