Finding the Fourth Proportional to 1,781.56, 2,671.98 and 1,492.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,781.56 : 2,671.98 = 1,492.12 : x
2. Step 2: Convert to fraction form
   1,781.56/2,671.98 = 1,492.12/x
3. Step 3: Cross multiply
   1,781.56x = 2,671.98 × 1,492.12
4. Step 4: Simplify right side
   1,781.56x = 3,986,914.80
5. Step 5: Solve for x
   x = 3,986,914.80/1,781.56
6. Step 6: Final answer
   x = 2,237.88