Finding the Fourth Proportional to 3,391.50, 5,087.56 and 1,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391.50 : 5,087.56 = 1,051.50 : x
2. Step 2: Convert to fraction form
   3,391.50/5,087.56 = 1,051.50/x
3. Step 3: Cross multiply
   3,391.50x = 5,087.56 × 1,051.50
4. Step 4: Simplify right side
   3,391.50x = 5,349,569.34
5. Step 5: Solve for x
   x = 5,349,569.34/3,391.50
6. Step 6: Final answer
   x = 1,577.35