Finding the Fourth Proportional to 2,123.07, 3,186.76 and 1,507.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.07 : 3,186.76 = 1,507.47 : x
2. Step 2: Convert to fraction form
   2,123.07/3,186.76 = 1,507.47/x
3. Step 3: Cross multiply
   2,123.07x = 3,186.76 × 1,507.47
4. Step 4: Simplify right side
   2,123.07x = 4,803,925.39
5. Step 5: Solve for x
   x = 4,803,925.39/2,123.07
6. Step 6: Final answer
   x = 2,262.73