Finding the Fourth Proportional to 1,504.71, 2,075.76 and 1,007.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,504.71 : 2,075.76 = 1,007.48 : x
2. Step 2: Convert to fraction form
   1,504.71/2,075.76 = 1,007.48/x
3. Step 3: Cross multiply
   1,504.71x = 2,075.76 × 1,007.48
4. Step 4: Simplify right side
   1,504.71x = 2,091,276.31
5. Step 5: Solve for x
   x = 2,091,276.31/1,504.71
6. Step 6: Final answer
   x = 1,389.82