Finding the Fourth Proportional to 1,500.15, 2,070.18 and 837.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.15 : 2,070.18 = 837.03 : x
2. Step 2: Convert to fraction form
   1,500.15/2,070.18 = 837.03/x
3. Step 3: Cross multiply
   1,500.15x = 2,070.18 × 837.03
4. Step 4: Simplify right side
   1,500.15x = 1,732,802.77
5. Step 5: Solve for x
   x = 1,732,802.77/1,500.15
6. Step 6: Final answer
   x = 1,155.09