Finding the Fourth Proportional to 1,370.52, 1,890.27 and 1,090.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,370.52 : 1,890.27 = 1,090.26 : x
2. Step 2: Convert to fraction form
   1,370.52/1,890.27 = 1,090.26/x
3. Step 3: Cross multiply
   1,370.52x = 1,890.27 × 1,090.26
4. Step 4: Simplify right side
   1,370.52x = 2,060,885.77
5. Step 5: Solve for x
   x = 2,060,885.77/1,370.52
6. Step 6: Final answer
   x = 1,503.73