Finding the Fourth Proportional to 1,047.95, 1,569.59 and 718.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.95 : 1,569.59 = 718.10 : x
2. Step 2: Convert to fraction form
   1,047.95/1,569.59 = 718.10/x
3. Step 3: Cross multiply
   1,047.95x = 1,569.59 × 718.10
4. Step 4: Simplify right side
   1,047.95x = 1,127,122.58
5. Step 5: Solve for x
   x = 1,127,122.58/1,047.95
6. Step 6: Final answer
   x = 1,075.55