Finding the Fourth Proportional to 1,500.61, 2,070.94 and 837.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.61 : 2,070.94 = 837.57 : x
2. Step 2: Convert to fraction form
   1,500.61/2,070.94 = 837.57/x
3. Step 3: Cross multiply
   1,500.61x = 2,070.94 × 837.57
4. Step 4: Simplify right side
   1,500.61x = 1,734,557.22
5. Step 5: Solve for x
   x = 1,734,557.22/1,500.61
6. Step 6: Final answer
   x = 1,155.90