Finding the Fourth Proportional to 1,970.77, 2,719.57 and 1,130.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,970.77 : 2,719.57 = 1,130.89 : x
2. Step 2: Convert to fraction form
   1,970.77/2,719.57 = 1,130.89/x
3. Step 3: Cross multiply
   1,970.77x = 2,719.57 × 1,130.89
4. Step 4: Simplify right side
   1,970.77x = 3,075,534.52
5. Step 5: Solve for x
   x = 3,075,534.52/1,970.77
6. Step 6: Final answer
   x = 1,560.58