Finding the Fourth Proportional to 1,500.81, 2,071.05 and 837.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.81 : 2,071.05 = 837.72 : x
2. Step 2: Convert to fraction form
   1,500.81/2,071.05 = 837.72/x
3. Step 3: Cross multiply
   1,500.81x = 2,071.05 × 837.72
4. Step 4: Simplify right side
   1,500.81x = 1,734,960.01
5. Step 5: Solve for x
   x = 1,734,960.01/1,500.81
6. Step 6: Final answer
   x = 1,156.02