Finding the Fourth Proportional to 1,356.78, 2,030.56 and 1,050.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.78 : 2,030.56 = 1,050.00 : x
2. Step 2: Convert to fraction form
   1,356.78/2,030.56 = 1,050.00/x
3. Step 3: Cross multiply
   1,356.78x = 2,030.56 × 1,050.00
4. Step 4: Simplify right side
   1,356.78x = 2,132,097.85
5. Step 5: Solve for x
   x = 2,132,097.85/1,356.78
6. Step 6: Final answer
   x = 1,571.44