Finding the Fourth Proportional to 2,333.61, 3,499.47 and 947.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.61 : 3,499.47 = 947.63 : x
2. Step 2: Convert to fraction form
   2,333.61/3,499.47 = 947.63/x
3. Step 3: Cross multiply
   2,333.61x = 3,499.47 × 947.63
4. Step 4: Simplify right side
   2,333.61x = 3,316,211.50
5. Step 5: Solve for x
   x = 3,316,211.50/2,333.61
6. Step 6: Final answer
   x = 1,421.07