Finding the Fourth Proportional to 1,404.58, 2,090.28 and 1,357.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.58 : 2,090.28 = 1,357.86 : x
2. Step 2: Convert to fraction form
   1,404.58/2,090.28 = 1,357.86/x
3. Step 3: Cross multiply
   1,404.58x = 2,090.28 × 1,357.86
4. Step 4: Simplify right side
   1,404.58x = 2,838,307.60
5. Step 5: Solve for x
   x = 2,838,307.60/1,404.58
6. Step 6: Final answer
   x = 2,020.75