Finding the Fourth Proportional to 1,403.58, 2,088.79 and 1,356.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.58 : 2,088.79 = 1,356.86 : x
2. Step 2: Convert to fraction form
   1,403.58/2,088.79 = 1,356.86/x
3. Step 3: Cross multiply
   1,403.58x = 2,088.79 × 1,356.86
4. Step 4: Simplify right side
   1,403.58x = 2,834,193.31
5. Step 5: Solve for x
   x = 2,834,193.31/1,403.58
6. Step 6: Final answer
   x = 2,019.26