Finding the Fourth Proportional to 2,557.33, 3,835.54 and 707.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.33 : 3,835.54 = 707.98 : x
2. Step 2: Convert to fraction form
   2,557.33/3,835.54 = 707.98/x
3. Step 3: Cross multiply
   2,557.33x = 3,835.54 × 707.98
4. Step 4: Simplify right side
   2,557.33x = 2,715,482.07
5. Step 5: Solve for x
   x = 2,715,482.07/2,557.33
6. Step 6: Final answer
   x = 1,061.84