Finding the Fourth Proportional to 1,373.42, 2,060.91 and 1,065.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.42 : 2,060.91 = 1,065.89 : x
2. Step 2: Convert to fraction form
   1,373.42/2,060.91 = 1,065.89/x
3. Step 3: Cross multiply
   1,373.42x = 2,060.91 × 1,065.89
4. Step 4: Simplify right side
   1,373.42x = 2,196,708.51
5. Step 5: Solve for x
   x = 2,196,708.51/1,373.42
6. Step 6: Final answer
   x = 1,599.44