Finding the Fourth Proportional to 1,404.84, 2,101.86 and 1,131.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.84 : 2,101.86 = 1,131.60 : x
2. Step 2: Convert to fraction form
   1,404.84/2,101.86 = 1,131.60/x
3. Step 3: Cross multiply
   1,404.84x = 2,101.86 × 1,131.60
4. Step 4: Simplify right side
   1,404.84x = 2,378,464.78
5. Step 5: Solve for x
   x = 2,378,464.78/1,404.84
6. Step 6: Final answer
   x = 1,693.05