Finding the Fourth Proportional to 1,259.98, 1,886.73 and 1,012.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,259.98 : 1,886.73 = 1,012.03 : x
2. Step 2: Convert to fraction form
   1,259.98/1,886.73 = 1,012.03/x
3. Step 3: Cross multiply
   1,259.98x = 1,886.73 × 1,012.03
4. Step 4: Simplify right side
   1,259.98x = 1,909,427.36
5. Step 5: Solve for x
   x = 1,909,427.36/1,259.98
6. Step 6: Final answer
   x = 1,515.44