Finding the Fourth Proportional to 1,762.35, 2,429.22 and 1,388.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,762.35 : 2,429.22 = 1,388.71 : x
2. Step 2: Convert to fraction form
   1,762.35/2,429.22 = 1,388.71/x
3. Step 3: Cross multiply
   1,762.35x = 2,429.22 × 1,388.71
4. Step 4: Simplify right side
   1,762.35x = 3,373,482.11
5. Step 5: Solve for x
   x = 3,373,482.11/1,762.35
6. Step 6: Final answer
   x = 1,914.20