Finding the Fourth Proportional to 1,370.61, 1,892.82 and 873.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,370.61 : 1,892.82 = 873.47 : x
2. Step 2: Convert to fraction form
   1,370.61/1,892.82 = 873.47/x
3. Step 3: Cross multiply
   1,370.61x = 1,892.82 × 873.47
4. Step 4: Simplify right side
   1,370.61x = 1,653,312.02
5. Step 5: Solve for x
   x = 1,653,312.02/1,370.61
6. Step 6: Final answer
   x = 1,206.26