Finding the Fourth Proportional to 1,355.62, 1,870.80 and 749.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.62 : 1,870.80 = 749.94 : x
2. Step 2: Convert to fraction form
   1,355.62/1,870.80 = 749.94/x
3. Step 3: Cross multiply
   1,355.62x = 1,870.80 × 749.94
4. Step 4: Simplify right side
   1,355.62x = 1,402,987.75
5. Step 5: Solve for x
   x = 1,402,987.75/1,355.62
6. Step 6: Final answer
   x = 1,034.94