Finding the Fourth Proportional to 1,071.56, 1,476.06 and 1,071.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.56 : 1,476.06 = 1,071.56 : x
2. Step 2: Convert to fraction form
   1,071.56/1,476.06 = 1,071.56/x
3. Step 3: Cross multiply
   1,071.56x = 1,476.06 × 1,071.56
4. Step 4: Simplify right side
   1,071.56x = 1,581,686.85
5. Step 5: Solve for x
   x = 1,581,686.85/1,071.56
6. Step 6: Final answer
   x = 1,476.06