Finding the Fourth Proportional to 1,336.55, 1,842.27 and 1,056.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.55 : 1,842.27 = 1,056.29 : x
2. Step 2: Convert to fraction form
   1,336.55/1,842.27 = 1,056.29/x
3. Step 3: Cross multiply
   1,336.55x = 1,842.27 × 1,056.29
4. Step 4: Simplify right side
   1,336.55x = 1,945,962.17
5. Step 5: Solve for x
   x = 1,945,962.17/1,336.55
6. Step 6: Final answer
   x = 1,455.96