Finding the Fourth Proportional to 1,430.22, 1,974.59 and 1,097.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430.22 : 1,974.59 = 1,097.98 : x
2. Step 2: Convert to fraction form
   1,430.22/1,974.59 = 1,097.98/x
3. Step 3: Cross multiply
   1,430.22x = 1,974.59 × 1,097.98
4. Step 4: Simplify right side
   1,430.22x = 2,168,068.01
5. Step 5: Solve for x
   x = 2,168,068.01/1,430.22
6. Step 6: Final answer
   x = 1,515.90