Finding the Fourth Proportional to 2,345.98, 3,519.47 and 702.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.98 : 3,519.47 = 702.65 : x
2. Step 2: Convert to fraction form
   2,345.98/3,519.47 = 702.65/x
3. Step 3: Cross multiply
   2,345.98x = 3,519.47 × 702.65
4. Step 4: Simplify right side
   2,345.98x = 2,472,955.60
5. Step 5: Solve for x
   x = 2,472,955.60/2,345.98
6. Step 6: Final answer
   x = 1,054.12