Finding the Fourth Proportional to 1,405.32, 1,937.34 and 1,090.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.32 : 1,937.34 = 1,090.04 : x
2. Step 2: Convert to fraction form
   1,405.32/1,937.34 = 1,090.04/x
3. Step 3: Cross multiply
   1,405.32x = 1,937.34 × 1,090.04
4. Step 4: Simplify right side
   1,405.32x = 2,111,778.09
5. Step 5: Solve for x
   x = 2,111,778.09/1,405.32
6. Step 6: Final answer
   x = 1,502.70