Finding the Fourth Proportional to 1,400.17, 2,100.71 and 914.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.17 : 2,100.71 = 914.17 : x
2. Step 2: Convert to fraction form
   1,400.17/2,100.71 = 914.17/x
3. Step 3: Cross multiply
   1,400.17x = 2,100.71 × 914.17
4. Step 4: Simplify right side
   1,400.17x = 1,920,406.06
5. Step 5: Solve for x
   x = 1,920,406.06/1,400.17
6. Step 6: Final answer
   x = 1,371.55