Finding the Fourth Proportional to 1,814.17, 2,722.20 and 948.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.17 : 2,722.20 = 948.55 : x
2. Step 2: Convert to fraction form
   1,814.17/2,722.20 = 948.55/x
3. Step 3: Cross multiply
   1,814.17x = 2,722.20 × 948.55
4. Step 4: Simplify right side
   1,814.17x = 2,582,142.81
5. Step 5: Solve for x
   x = 2,582,142.81/1,814.17
6. Step 6: Final answer
   x = 1,423.32