Finding the Fourth Proportional to 1,902.17, 2,624.27 and 1,406.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,902.17 : 2,624.27 = 1,406.00 : x
2. Step 2: Convert to fraction form
   1,902.17/2,624.27 = 1,406.00/x
3. Step 3: Cross multiply
   1,902.17x = 2,624.27 × 1,406.00
4. Step 4: Simplify right side
   1,902.17x = 3,689,703.47
5. Step 5: Solve for x
   x = 3,689,703.47/1,902.17
6. Step 6: Final answer
   x = 1,939.74