Finding the Fourth Proportional to 1,773.47, 2,445.72 and 1,214.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.47 : 2,445.72 = 1,214.57 : x
2. Step 2: Convert to fraction form
   1,773.47/2,445.72 = 1,214.57/x
3. Step 3: Cross multiply
   1,773.47x = 2,445.72 × 1,214.57
4. Step 4: Simplify right side
   1,773.47x = 2,970,498.14
5. Step 5: Solve for x
   x = 2,970,498.14/1,773.47
6. Step 6: Final answer
   x = 1,674.96