Finding the Fourth Proportional to 1,503.82, 2,075.47 and 840.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503.82 : 2,075.47 = 840.71 : x
2. Step 2: Convert to fraction form
   1,503.82/2,075.47 = 840.71/x
3. Step 3: Cross multiply
   1,503.82x = 2,075.47 × 840.71
4. Step 4: Simplify right side
   1,503.82x = 1,744,868.38
5. Step 5: Solve for x
   x = 1,744,868.38/1,503.82
6. Step 6: Final answer
   x = 1,160.29