Finding the Fourth Proportional to 1,580.37, 2,369.19 and 849.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580.37 : 2,369.19 = 849.10 : x
2. Step 2: Convert to fraction form
   1,580.37/2,369.19 = 849.10/x
3. Step 3: Cross multiply
   1,580.37x = 2,369.19 × 849.10
4. Step 4: Simplify right side
   1,580.37x = 2,011,667.38
5. Step 5: Solve for x
   x = 2,011,667.38/1,580.37
6. Step 6: Final answer
   x = 1,272.91