Finding the Fourth Proportional to 1,492.32, 2,058.59 and 1,212.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.32 : 2,058.59 = 1,212.06 : x
2. Step 2: Convert to fraction form
   1,492.32/2,058.59 = 1,212.06/x
3. Step 3: Cross multiply
   1,492.32x = 2,058.59 × 1,212.06
4. Step 4: Simplify right side
   1,492.32x = 2,495,141.94
5. Step 5: Solve for x
   x = 2,495,141.94/1,492.32
6. Step 6: Final answer
   x = 1,671.98