Finding the Fourth Proportional to 1,500.19, 2,070.17 and 837.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.19 : 2,070.17 = 837.09 : x
2. Step 2: Convert to fraction form
   1,500.19/2,070.17 = 837.09/x
3. Step 3: Cross multiply
   1,500.19x = 2,070.17 × 837.09
4. Step 4: Simplify right side
   1,500.19x = 1,732,918.61
5. Step 5: Solve for x
   x = 1,732,918.61/1,500.19
6. Step 6: Final answer
   x = 1,155.13