Finding the Fourth Proportional to 1,492.59, 2,061.78 and 1,122.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.59 : 2,061.78 = 1,122.37 : x
2. Step 2: Convert to fraction form
   1,492.59/2,061.78 = 1,122.37/x
3. Step 3: Cross multiply
   1,492.59x = 2,061.78 × 1,122.37
4. Step 4: Simplify right side
   1,492.59x = 2,314,080.02
5. Step 5: Solve for x
   x = 2,314,080.02/1,492.59
6. Step 6: Final answer
   x = 1,550.38