Finding the Fourth Proportional to 1,513.05, 2,087.96 and 849.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.05 : 2,087.96 = 849.93 : x
2. Step 2: Convert to fraction form
   1,513.05/2,087.96 = 849.93/x
3. Step 3: Cross multiply
   1,513.05x = 2,087.96 × 849.93
4. Step 4: Simplify right side
   1,513.05x = 1,774,615.59
5. Step 5: Solve for x
   x = 1,774,615.59/1,513.05
6. Step 6: Final answer
   x = 1,172.87