Finding the Fourth Proportional to 1,423.82, 2,133.57 and 1,056.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.82 : 2,133.57 = 1,056.89 : x
2. Step 2: Convert to fraction form
   1,423.82/2,133.57 = 1,056.89/x
3. Step 3: Cross multiply
   1,423.82x = 2,133.57 × 1,056.89
4. Step 4: Simplify right side
   1,423.82x = 2,254,948.80
5. Step 5: Solve for x
   x = 2,254,948.80/1,423.82
6. Step 6: Final answer
   x = 1,583.73