Finding the Fourth Proportional to 1,071.50, 1,477.86 and 740.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.50 : 1,477.86 = 740.48 : x
2. Step 2: Convert to fraction form
   1,071.50/1,477.86 = 740.48/x
3. Step 3: Cross multiply
   1,071.50x = 1,477.86 × 740.48
4. Step 4: Simplify right side
   1,071.50x = 1,094,325.77
5. Step 5: Solve for x
   x = 1,094,325.77/1,071.50
6. Step 6: Final answer
   x = 1,021.30