Finding the Fourth Proportional to 1,378.10, 2,054.01 and 1,300.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378.10 : 2,054.01 = 1,300.26 : x
2. Step 2: Convert to fraction form
   1,378.10/2,054.01 = 1,300.26/x
3. Step 3: Cross multiply
   1,378.10x = 2,054.01 × 1,300.26
4. Step 4: Simplify right side
   1,378.10x = 2,670,759.62
5. Step 5: Solve for x
   x = 2,670,759.62/1,378.10
6. Step 6: Final answer
   x = 1,938.00