Finding the Fourth Proportional to 1,333.35, 1,839.78 and 1,001.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.35 : 1,839.78 = 1,001.07 : x
2. Step 2: Convert to fraction form
   1,333.35/1,839.78 = 1,001.07/x
3. Step 3: Cross multiply
   1,333.35x = 1,839.78 × 1,001.07
4. Step 4: Simplify right side
   1,333.35x = 1,841,748.56
5. Step 5: Solve for x
   x = 1,841,748.56/1,333.35
6. Step 6: Final answer
   x = 1,381.29