Finding the Fourth Proportional to 1,507.03, 2,079.61 and 947.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.03 : 2,079.61 = 947.59 : x
2. Step 2: Convert to fraction form
   1,507.03/2,079.61 = 947.59/x
3. Step 3: Cross multiply
   1,507.03x = 2,079.61 × 947.59
4. Step 4: Simplify right side
   1,507.03x = 1,970,617.64
5. Step 5: Solve for x
   x = 1,970,617.64/1,507.03
6. Step 6: Final answer
   x = 1,307.62