Finding the Fourth Proportional to 1,300.21, 1,947.97 and 714.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.21 : 1,947.97 = 714.58 : x
2. Step 2: Convert to fraction form
   1,300.21/1,947.97 = 714.58/x
3. Step 3: Cross multiply
   1,300.21x = 1,947.97 × 714.58
4. Step 4: Simplify right side
   1,300.21x = 1,391,980.40
5. Step 5: Solve for x
   x = 1,391,980.40/1,300.21
6. Step 6: Final answer
   x = 1,070.58