Finding the Fourth Proportional to 1,312.03, 1,968.74 and 849.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,312.03 : 1,968.74 = 849.69 : x
2. Step 2: Convert to fraction form
   1,312.03/1,968.74 = 849.69/x
3. Step 3: Cross multiply
   1,312.03x = 1,968.74 × 849.69
4. Step 4: Simplify right side
   1,312.03x = 1,672,818.69
5. Step 5: Solve for x
   x = 1,672,818.69/1,312.03
6. Step 6: Final answer
   x = 1,274.99