Finding the Fourth Proportional to 2,189.93, 3,020.76 and 1,349.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.93 : 3,020.76 = 1,349.15 : x
2. Step 2: Convert to fraction form
   2,189.93/3,020.76 = 1,349.15/x
3. Step 3: Cross multiply
   2,189.93x = 3,020.76 × 1,349.15
4. Step 4: Simplify right side
   2,189.93x = 4,075,443.25
5. Step 5: Solve for x
   x = 4,075,443.25/2,189.93
6. Step 6: Final answer
   x = 1,861.00