Finding the Fourth Proportional to 2,071.12, 3,106.68 and 1,300

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.12 : 3,106.68 = 1,300 : x
2. Step 2: Convert to fraction form
   2,071.12/3,106.68 = 1,300/x
3. Step 3: Cross multiply
   2,071.12x = 3,106.68 × 1,300
4. Step 4: Simplify right side
   2,071.12x = 4,038,684
5. Step 5: Solve for x
   x = 4,038,684/2,071.12
6. Step 6: Final answer
   x = 1,950