Finding the Fourth Proportional to 1,400.86, 2,101.32 and 1,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.86 : 2,101.32 = 1,112.50 : x
2. Step 2: Convert to fraction form
   1,400.86/2,101.32 = 1,112.50/x
3. Step 3: Cross multiply
   1,400.86x = 2,101.32 × 1,112.50
4. Step 4: Simplify right side
   1,400.86x = 2,337,718.50
5. Step 5: Solve for x
   x = 2,337,718.50/1,400.86
6. Step 6: Final answer
   x = 1,668.77