Finding the Fourth Proportional to 3,391.65, 5,085.72 and 1,051.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391.65 : 5,085.72 = 1,051.02 : x
2. Step 2: Convert to fraction form
   3,391.65/5,085.72 = 1,051.02/x
3. Step 3: Cross multiply
   3,391.65x = 5,085.72 × 1,051.02
4. Step 4: Simplify right side
   3,391.65x = 5,345,193.43
5. Step 5: Solve for x
   x = 5,345,193.43/3,391.65
6. Step 6: Final answer
   x = 1,575.99