Finding the Fourth Proportional to 1,531.47, 2,114.72 and 972.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.47 : 2,114.72 = 972.93 : x
2. Step 2: Convert to fraction form
   1,531.47/2,114.72 = 972.93/x
3. Step 3: Cross multiply
   1,531.47x = 2,114.72 × 972.93
4. Step 4: Simplify right side
   1,531.47x = 2,057,474.53
5. Step 5: Solve for x
   x = 2,057,474.53/1,531.47
6. Step 6: Final answer
   x = 1,343.46