Finding the Fourth Proportional to 1,500.90, 2,071.37 and 837.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.90 : 2,071.37 = 837.91 : x
2. Step 2: Convert to fraction form
   1,500.90/2,071.37 = 837.91/x
3. Step 3: Cross multiply
   1,500.90x = 2,071.37 × 837.91
4. Step 4: Simplify right side
   1,500.90x = 1,735,626.32
5. Step 5: Solve for x
   x = 1,735,626.32/1,500.90
6. Step 6: Final answer
   x = 1,156.39